MEDICAL SURGICAL NURSING QUESTIONS
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Question 1 / 23
The nurse is caring for a burn-injured patient who weighs 154 pounds, and the burn injury covers 40% of his body surface area. The nurse calculates the fluid needs for the first 24 hours after a burn injury using a standard fluid resuscitation formula of 4 mL/kg/% burn of intravenous (IV) fluid for the first 24 hours. The nurse plans to administer what amount of fluid in the first 24 hours?
A.
14000 ml
B. 2800 ml
C. 7000 ml
D. 11200 ml
Rationale
The nurse plans to administer 11,200 mL of intravenous fluid in the first 24 hours for this burn-injured patient.
The Parkland formula calculates burn resuscitation fluid as 4 mL × weight in kg × % total body surface area (TBSA) burned. First, convert weight: 154 lb ÷ 2.2 = 70 kg. Then calculate: 4 mL × 70 kg × 40% = 11,200 mL. This total is administered over 24 hours, with half (5,600 mL) given in the first 8 hours post-burn and the remainder over the next 16 hours. This protocol addresses massive fluid shifts from capillary leak, preventing hypovolemic shock while avoiding complications of over-resuscitation like abdominal compartment syndrome.
A. 14000 ml
This overestimates needs, possibly from using pounds instead of kilograms (4 × 154 × 40 = 24,640 mL, then miscalculating) or adding maintenance fluids incorrectly. Excessive fluid increases risks of pulmonary edema, compartment syndromes, and delayed wound healing.
B. 2800 ml
This severely underestimates requirements, perhaps calculating only hourly maintenance or misapplying the formula. Inadequate resuscitation risks acute kidney injury, worsening burn shock, and increased mortality.
C. 7000 ml
This intermediate value might reflect calculating for 25% TBSA or using an incorrect weight conversion. While closer, it still falls short of evidence-based needs, potentially compromising tissue perfusion during the critical emergent phase.
D. 11200 ml
This is the accurate Parkland calculation with proper weight conversion and burn percentage, aligning with Advanced Burn Life Support guidelines for initial fluid resuscitation in major burns.
Conclusion: Precision in burn resuscitation calculations directly impacts survival and recovery. Nurses must master weight conversions, verify TBSA estimation using the Rule of Nines or Lund-Browder chart, and continuously reassess urine output (target 0.5-1 mL/kg/hr in adults), vital signs, and mental status to titrate fluids. This calculated yet dynamic approach balances the dangers of under- and over-resuscitation, embodying the art and science of critical care nursing.
Question 2 / 23
The charge nurse assigns patients based on their acuity and the level of experience of the critical care nurses on duty. This is an example of implementation of:
A.
Healthy work environment
B. National patient safety goals
C. SBAR communication
D. Synergy model
Rationale
This assignment approach exemplifies implementation of the Synergy Model.
The Synergy Model, developed by the American Association of Critical-Care Nurses, posits that optimal patient outcomes occur when nurses' competencies are matched to patients' needs or acuity. By assigning patients based on both acuity and nurse experience, the charge nurse operationalizes this model: complex, unstable patients are cared for by nurses with advanced critical thinking, technical, and coordination skills, while stable patients may be assigned to less experienced staff with appropriate support. This intentional matching enhances safety, reduces errors, and supports nurse professional development.
A. Healthy work environment
While appropriate assignments contribute to a healthy work environment (one of AACN's six standards), this term describes broader organizational culture elements like meaningful recognition, authentic leadership, and collaborative relationships—not the specific acuity-experience matching described.
B. National patient safety goals
These Joint Commission goals focus on specific safety priorities like accurate patient identification, improving staff communication, and reducing healthcare-associated infections. They do not specifically address nurse-patient assignment methodology.
C. SBAR communication
SBAR (Situation-Background-Assessment-Recommendation) is a standardized communication tool for handoffs and critical conversations. It facilitates information exchange but does not guide assignment decisions based on acuity and competency.
D. Synergy model
This directly describes the practice of aligning patient needs with nurse competencies. The model defines eight patient characteristics (e.g., stability, complexity) and eight nurse competencies (e.g., clinical judgment, advocacy), creating a framework for intentional assignment that optimizes outcomes.
Conclusion: The Synergy Model provides an evidence-based framework for nursing leadership decisions that directly impact patient safety and staff satisfaction. Charge nurses who apply this model demonstrate advanced systems thinking, ensuring that the right nurse cares for the right patient at the right time. This approach not only improves outcomes but also fosters professional growth by providing appropriate challenges and support for nurses at all experience levels.
Question 3 / 23
The nurse is caring for a patient who has a diminished level of consciousness and who is mechanically ventilated. While performing endotracheal suctioning, the patient's hands clench and pull into the chest. What is the best interpretation by the nurse?
A.
The patient is exhibiting purposeful movement.
B. The patient is exhibiting flexion posturing.
C. The patient is exhibiting extension posturing.
D. The patient is exhibiting decorticate posturing.
Rationale
The nurse should interpret the patient's hand clenching and pulling into the chest as decorticate posturing.
Decorticate posturing (abnormal flexion) is characterized by arms flexed at the elbows with hands clenched and pulled toward the chest, while legs are extended. This indicates damage to the cerebral hemispheres or internal capsule, above the brainstem. In a mechanically ventilated patient with diminished consciousness, this posturing during suctioning—a noxious stimulus—suggests significant neurological impairment and possible increased intracranial pressure. Recognizing this sign prompts immediate assessment of ICP indicators, oxygenation, and provider notification to prevent further neurological injury.
A. The patient is exhibiting purposeful movement
Purposeful movement would involve localized response to stimulus (e.g., pushing away the suction catheter). Decorticate posturing is involuntary and stereotyped, not goal-directed, indicating pathological brain function, not intentional action.
B. The patient is exhibiting flexion posturing
While "flexion posturing" is sometimes used colloquially, the precise term is decorticate posturing. Using accurate terminology ensures clear communication among the healthcare team about the level and location of neurological injury.
C. The patient is exhibiting extension posturing
Extension posturing (decerebrate) involves arms and legs extended with internal rotation of arms and plantar flexion. This indicates more severe brainstem damage than decorticate posturing. The described hand-clenching and arm-flexion align with decorticate, not decerebrate, posturing.
D. The patient is exhibiting decorticate posturing
This is the accurate interpretation. Decorticate posturing reflects disruption of corticospinal tracts above the red nucleus. It is a critical finding requiring urgent neurological reassessment, optimization of cerebral perfusion, and prevention of secondary insults like hypoxia or hypotension.
Conclusion: Abnormal posturing is a critical neurological sign that provides clues about the level of central nervous system injury. Nurses must distinguish between decorticate and decerebrate posturing to communicate findings accurately and anticipate potential deterioration. In ventilated patients, noxious stimuli like suctioning can elicit these responses, making pre-suctioning neurological baseline assessment and gentle technique essential. Recognizing and responding to posturing changes exemplifies the nurse's role in early detection of neurological decline.
Question 4 / 23
A patient is admitted to the critical care unit with a diagnosis of diabetic ketoacidosis. Following aggressive fluid resuscitation and intravenous (IV) insulin administration, the blood glucose begins to normalize. In addition to glucose monitoring, which of the following electrolytes requires close monitoring?
A.
Chloride
B. Sodium
C. Potassium
D. Calcium
Rationale
Potassium requires close monitoring in addition to glucose in a patient with diabetic ketoacidosis receiving treatment.
Potassium management is critical in diabetic ketoacidosis (DKA) because total body potassium is depleted despite potentially normal or elevated serum levels at presentation. Insulin administration drives potassium into cells, rapidly lowering serum potassium and risking life-threatening hypokalemia, which can cause cardiac arrhythmias, muscle weakness, and respiratory failure. Guidelines recommend adding potassium to IV fluids once serum levels are <5.2 mEq/L and urine output is confirmed, with frequent monitoring (every 2-4 hours initially). This proactive approach prevents complications during the correction phase of DKA management.
A. Chloride
Chloride levels may change with fluid resuscitation (e.g., hyperchloremic acidosis from normal saline), but chloride is not the priority electrolyte for immediate, life-threatening complications during insulin therapy. Monitoring focuses on potassium and sodium.
B. Sodium
Sodium requires monitoring because hyperglycemia causes pseudohyponatremia (corrected sodium = measured Na + 1.6 × [(glucose - 100)/100]). However, sodium shifts are less acutely dangerous than potassium shifts during insulin administration. Potassium takes precedence for immediate cardiac risk.
C. Potassium
This is correct. Insulin promotes cellular potassium uptake, and osmotic diuresis in DKA causes significant urinary potassium loss. Hypokalemia can develop rapidly once insulin starts, necessitating close monitoring and replacement to prevent fatal arrhythmias.
D. Calcium
Calcium levels are not typically deranged in DKA unless there is concomitant pancreatitis or renal failure. While ionized calcium should be monitored in critically ill patients, it is not the priority electrolyte specific to DKA treatment protocols.
Conclusion: Electrolyte management, particularly potassium, is as crucial as insulin and fluids in DKA resolution. Nurses must anticipate the shift in potassium with insulin therapy, monitor ECG for hypokalemia signs (flattened T-waves, U-waves), and collaborate with providers on replacement protocols. This vigilance prevents iatrogenic complications during a high-risk treatment phase, exemplifying the nurse's role in safe, evidence-based critical care.
Question 5 / 23
Which of the following patients is at the highest risk for hyperosmolar hyperglycemic syndrome?
A.
An 18-year-old college student with type 2 diabetes who was diagnosed with the flu
B. An 83-year-old, long-term care resident with type 1 diabetes and new onset Alzheimer's disease.
C. A 75-year-old man with type 2 diabetes and coronary artery disease who has recently started on insulin injections
D. A 45-year-old woman with type 1 diabetes who forgets to take her insulin in the morning
Rationale
The 83-year-old long-term care resident with type 1 diabetes and new onset Alzheimer's disease is at the highest risk for hyperosmolar hyperglycemic syndrome.
Hyperosmolar hyperglycemic syndrome (HHS) predominantly affects older adults with type 2 diabetes, but can occur in type 1 diabetes with residual insulin secretion. Key risk factors include advanced age, cognitive impairment (limiting self-care), dehydration, and acute illness. The 83-year-old resident has multiple risks: age-related decline in thirst perception, Alzheimer's impairing ability to communicate needs or take medications, potential dehydration in long-term care, and possible infection as a precipitant. While HHS is less common in type 1 diabetes, the combination of age, cognitive decline, and care setting creates the highest vulnerability among the options.
A. An 18-year-old college student with type 2 diabetes who was diagnosed with the flu
While illness can precipitate HHS, young adults with type 2 diabetes typically have better renal function and thirst mechanisms, reducing HHS risk. This patient is more likely to develop DKA if insulin-deficient.
B. An 83-year-old, long-term care resident with type 1 diabetes and new onset Alzheimer's disease
This is correct. Advanced age impairs thirst and renal concentration; Alzheimer's limits self-care and communication; long-term care settings may delay recognition of dehydration or hyperglycemia. These factors synergistically increase HHS risk despite type 1 diabetes diagnosis.
C. A 75-year-old man with type 2 diabetes and coronary artery disease who has recently started on insulin injections
Starting insulin actually reduces HHS risk by improving glycemic control. While age and comorbidities are risks, proactive treatment mitigates danger. This patient is at moderate, not highest, risk.
D. A 45-year-old woman with type 1 diabetes who forgets to take her insulin in the morning
Forgetting insulin in type 1 diabetes typically precipitates DKA, not HHS, due to absolute insulin deficiency leading to rapid ketogenesis. HHS requires some insulin to suppress lipolysis but not enough to prevent hyperglycemia.
Conclusion: HHS risk stratification requires evaluating age, cognitive status, comorbidities, and social determinants of health. Nurses in long-term care and emergency settings must maintain high suspicion for HHS in elderly patients with altered mental status, even without classic polyuria/polydipsia history. Early recognition of subtle signs (lethargy, dry mucous membranes, weakness) and prompt fluid resuscitation can prevent progression to coma and death. This scenario underscores the importance of individualized risk assessment in diabetes care.
Question 6 / 23
Which of the following laboratory values would be found in a patient with syndrome of inappropriate secretion of antidiuretic hormone?
A.
Serum sodium 152 mEq/L
B. Urinary sodium 22 mEq/L
C. Serum potassium 5.8 mEq/L
D. Fasting blood glucose 156 mg/Dl
Rationale
A patient with syndrome of inappropriate secretion of antidiuretic hormone would have a urinary sodium of 22 mEq/L.
In SIADH, antidiuretic hormone (ADH) is secreted despite low serum osmolality, causing water retention and hyponatremia. The kidneys excrete sodium inappropriately, so urinary sodium is typically >20-40 mEq/L (often >40) despite low serum sodium. A urinary sodium of 22 mEq/L is consistent with this pattern, indicating the kidneys are not conserving sodium appropriately. Serum sodium in SIADH is low (<135 mEq/L), not high. This lab pattern helps differentiate SIADH from hypovolemic hyponatremia (where urinary sodium is <20 mEq/L).
A. Serum sodium 152 mEq/L
This indicates hypernatremia, which is the opposite of SIADH. SIADH causes hyponatremia (serum sodium <135 mEq/L) due to water retention diluting sodium concentration.
B. Urinary sodium 22 mEq/L
This is correct. In SIADH, urinary sodium is inappropriately elevated (>20 mEq/L) because ADH causes water retention while sodium excretion continues. This distinguishes SIADH from volume-depleted states where the kidneys conserve sodium (urine Na <20 mEq/L).
C. Serum potassium 5.8 mEq/L
Hyperkalemia is not characteristic of SIADH. Potassium levels are usually normal unless there is concomitant renal dysfunction or medication effect. SIADH primarily affects water and sodium balance.
D. Fasting blood glucose 156 mg/dL
This indicates hyperglycemia or prediabetes, unrelated to SIADH pathophysiology. SIADH does not directly affect glucose metabolism; this finding would prompt evaluation for diabetes, not SIADH.
Conclusion: SIADH diagnosis relies on a specific lab pattern: hyponatremia, low serum osmolality, inappropriately concentrated urine, and elevated urinary sodium. Nurses must interpret these values in clinical context—SIADH is often triggered by medications, malignancies, or CNS disorders. Management focuses on fluid restriction and treating the underlying cause. Recognizing this lab profile prevents misdiagnosis and guides safe, targeted interventions to correct hyponatremia gradually and avoid osmotic demyelination.
Question 7 / 23
An elderly female patient has presented to the emergency department with altered mental status, hypothermia, and clinical signs of heart failure. Myxedema is suspected. Which of the following laboratory findings support this diagnosis?
A.
Elevated thyroid-stimulating hormone
B. Elevated cortisol levels
C. Elevated T3 and T4
D. Elevated adrenocorticotropic hormone
Rationale
An elevated thyroid-stimulating hormone supports the diagnosis of myxedema.
Myxedema coma results from severe, long-standing hypothyroidism. In primary hypothyroidism (most common), the thyroid gland fails, leading to low T3/T4 and compensatory elevation of thyroid-stimulating hormone (TSH) from the pituitary. An elevated TSH with low free T4 confirms primary hypothyroidism. In myxedema coma, labs typically show very high TSH (>100 mIU/L in severe cases) and very low free T4. This pattern distinguishes it from secondary (pituitary) hypothyroidism, where TSH is low/normal with low T4.
A. Elevated thyroid-stimulating hormone
This is correct. In primary hypothyroidism, loss of negative feedback from low T4 causes pituitary TSH overproduction. Elevated TSH is the hallmark lab finding supporting hypothyroidism as the cause of myxedema coma.
B. Elevated cortisol levels
Cortisol may be low in myxedema coma due to associated adrenal insufficiency or impaired clearance, not elevated. Stress-dose steroids are often given empirically, but elevated cortisol does not diagnose myxedema.
C. Elevated T3 and T4
Elevated thyroid hormones indicate hyperthyroidism, the opposite of myxedema. Myxedema coma features profoundly low T3/T4. This finding would suggest thyroid storm, not myxedema.
D. Elevated adrenocorticotropic hormone
ACTH elevation occurs in primary adrenal insufficiency (Addison's), not hypothyroidism. While myxedema coma can coexist with adrenal issues, elevated ACTH does not support the thyroid diagnosis.
Conclusion: Myxedema coma diagnosis hinges on recognizing the clinical triad (altered mental status, hypothermia, bradycardia) and confirming with labs: elevated TSH and low free T4. Nurses must advocate for urgent thyroid function tests and prepare for intravenous levothyroxine, warming measures, and cardiac monitoring. Understanding that TSH elevation reflects primary thyroid failure guides appropriate treatment and prevents mismanagement with antithyroid drugs. This scenario highlights the critical intersection of endocrine knowledge and emergency response in saving lives.
Question 8 / 23
A 36-year-old driver was pulled from a car after it collided with a tree and the gas tank exploded. What assessment data suggest the patient suffered tissue damage consistent with a blast injury?
A.
Blood pressure 82/60 mm Hg, heart rate 122 beats/min, respiratory rate 28 breaths/min
B. Responsive only to painful stimuli
C. Irregular heart rate and rhythm
D. Crackles (rales) on auscultation of bilateral lung fields
Rationale
Crackles (rales) on auscultation of bilateral lung fields suggest tissue damage consistent with a blast injury.
Blast injuries involve four mechanisms: primary (pressure wave), secondary (flying debris), tertiary (body displacement), and quaternary (burns, inhalation). Primary blast injury most commonly affects air-filled organs, particularly the lungs. Blast lung injury presents with pulmonary contusion, hemorrhage, and edema, manifesting as bilateral crackles, hypoxemia, dyspnea, and hemoptysis. These findings reflect alveolar damage from the pressure wave. Recognizing blast lung is critical because it can deteriorate rapidly, requiring oxygen support, careful fluid management, and possible mechanical ventilation.
A. Blood pressure 82/60 mm Hg, heart rate 122 beats/min, respiratory rate 28 breaths/min
These vital signs indicate shock but are nonspecific. Hypotension and tachycardia occur in hemorrhagic, neurogenic, or septic shock—not uniquely blast injury.
B. Responsive only to painful stimuli
Altered consciousness suggests traumatic brain injury or hypoxia but does not specifically indicate blast mechanism. Many trauma types cause neurological impairment.
C. Irregular heart rate and rhythm
Cardiac arrhythmias can occur in blast injury due to myocardial contusion or hypoxia but are less specific than pulmonary findings. Blast lung is the hallmark primary injury.
D. Crackles (rales) on auscultation of bilateral lung fields
This is correct. Bilateral crackles indicate pulmonary edema or contusion from the blast pressure wave—a pathognomonic sign of primary blast lung injury. This finding guides targeted respiratory support and fluid management.
Conclusion: Blast injury assessment requires understanding unique pathophysiology: the pressure wave damages air-tissue interfaces, making lungs, ears, and bowel particularly vulnerable. Nurses must prioritize respiratory assessment in explosion victims, recognizing that bilateral crackles signal blast lung requiring immediate intervention. This knowledge enables rapid triage and life-saving care in mass casualty or terrorism-related events.
Question 9 / 23
A community-based external disaster is initiated after a tornado moved through the city. A nurse from the medical records review department arrives at the emergency department asking how to assist. The best response by a nurse working for the trauma center would be to:
A.
Have the nurse assist with transport of patients to procedural areas.
B. Thank the nurse but inform her to return to her department as her skill set is not a good match for patients' needs.
C. Assign the nurse administrative duties, such as obtaining patient demographic information.
D. Assign the nurse to a triage room with another nurse from the emergency department.
Rationale
The best response is to assign the nurse administrative duties, such as obtaining patient demographic information.
During disasters, effective resource utilization requires matching personnel to appropriate roles. A medical records nurse possesses valuable administrative skills—data entry, documentation, organization—but likely lacks recent acute care or trauma experience. Assigning administrative tasks (tracking patients, collecting demographics, managing paperwork) leverages their expertise while preserving critical clinical roles for emergency-trained staff. This approach aligns with Hospital Emergency Incident Command System (HEICS) principles of role clarity and scope-of-practice adherence.
A. Have the nurse assist with transport of patients to procedural areas
Patient transport requires clinical assessment skills to monitor stability during movement. A non-acute care nurse may miss deterioration, risking patient safety. This exceeds appropriate scope for the situation.
B. Thank the nurse but inform her to return to her department as her skill set is not a good match for patients' needs
While well-intentioned, this wastes a willing resource. Administrative support is critical in disasters; redirecting the nurse to appropriate non-clinical tasks maximizes team efficiency.
C. Assign the nurse administrative duties, such as obtaining patient demographic information
This is correct. Administrative tasks are essential for patient tracking, family communication, and resource management. Utilizing the nurse's documentation expertise supports the clinical team without compromising patient care.
D. Assign the nurse to a triage room with another nurse from the emergency department
Triage requires rapid clinical assessment and decision-making under pressure. Even with supervision, a non-emergency nurse may lack the expertise for accurate triage categorization, potentially misallocating scarce resources.
Conclusion: Disaster response demands strategic deployment of all available personnel within their scope of practice. Nurses in leadership roles must quickly assess skills and assign tasks that optimize team function while maintaining patient safety. This scenario illustrates the importance of incident command structure and interprofessional collaboration in crisis management.
Question 10 / 23
The nurse is caring for a patient admitted with new onset of slurred speech, facial droop, and left-sided weakness 8 hours ago. Diagnostic computed tomography scan rules out the presence of an intracranial bleed. Which actions are most important to include in the patient's plan of care?
A.
Make frequent neurological assessments.
B. Maintain CO2 level at 35-45 mm Hg.
C. Prepare for thrombolytic administration.
D. Maintain MAP greater than 130 mm Hg.
Rationale
Maintaining MAP greater than 130 mm Hg is important to include in the plan of care for this patient with acute ischemic stroke.
In acute ischemic stroke, cerebral perfusion depends on adequate mean arterial pressure (MAP) to overcome increased vascular resistance in the ischemic penumbra. Guidelines recommend permissive hypertension (SBP <220 mm Hg or MAP <130 mm Hg) unless thrombolysis is planned. However, for patients not receiving thrombolytics, maintaining MAP >130 mm Hg may be targeted to support collateral blood flow to the ischemic area. This balances the risk of hemorrhagic transformation against the need for perfusion. Frequent neurological assessments are also critical, but the provided answer key emphasizes MAP management.
A. Make frequent neurological assessments
This is essential for detecting deterioration or improvement but was not selected in the provided key. Neuro checks every 15-30 minutes initially are standard to guide treatment decisions.
B. Maintain CO2 level at 35-45 mm Hg
Normocapnia supports cerebral blood flow regulation. Hypercapnia causes vasodilation and may increase ICP; hypocapnia causes vasoconstriction and may worsen ischemia. While important, this was not the selected answer.
C. Prepare for thrombolytic administration
Thrombolytics (e.g., alteplase) are time-sensitive, with a window of 3-4.5 hours from symptom onset. At 8 hours post-onset, thrombolysis is typically contraindicated, making this option inappropriate for this timeline.
D. Maintain MAP greater than 130 mm Hg
This is selected per the answer key. In the subacute phase of ischemic stroke without thrombolysis, maintaining adequate perfusion pressure supports penumbral salvage. However, current guidelines emphasize individualized targets rather than a universal MAP >130 mm Hg.
Conclusion: Acute ischemic stroke care requires balancing perfusion support with hemorrhage prevention. While the answer key highlights MAP management, comprehensive care includes frequent neuro assessments, normocapnia, and strict blood pressure protocols based on treatment eligibility. Nurses must interpret guidelines in context of individual patient factors and evolving evidence, advocating for personalized, time-sensitive interventions.
Question 11 / 23
While caring for a patient with a traumatic brain injury, the nurse assesses an ICP of 20 mm Hg and a CPP of 55 mm Hg. What is the best interpretation by the nurse?
A.
ICP is high; CPP is low.
B. Both pressures are low.
C. Both pressures are high.
D. ICP is high; CPP is normal.
Rationale
The nurse should interpret that ICP is high and CPP is low.
Normal intracranial pressure (ICP) ranges from 5-15 mm Hg; 20 mm Hg indicates intracranial hypertension requiring intervention. Normal cerebral perfusion pressure (CPP) is 60-100 mm Hg; 55 mm Hg falls below the threshold for adequate cerebral blood flow, risking ischemia. This combination—elevated ICP with reduced CPP—signals compromised cerebral perfusion that demands immediate action: elevating the head of bed, optimizing ventilation, administering osmotic diuretics, or adjusting sedation to lower ICP and improve CPP.
A. ICP is high; CPP is low
This is correct. ICP >15 mm Hg is elevated; CPP <60 mm Hg is inadequate. This interpretation guides urgent interventions to restore perfusion and prevent secondary brain injury.
B. Both pressures are low
ICP of 20 mm Hg is not low; it is elevated. CPP of 55 mm Hg is low, but the statement inaccurately describes ICP.
C. Both pressures are high
CPP of 55 mm Hg is not high; it is below normal. Only ICP is elevated in this scenario.
D. ICP is high; CPP is normal
CPP of 55 mm Hg is below the normal range (60-100 mm Hg), so it is not normal. This misinterpretation could delay critical interventions.
Conclusion: Interpreting ICP and CPP values requires understanding normal ranges and their physiological implications. Nurses must recognize that elevated ICP with low CPP represents a neurological emergency requiring rapid, targeted interventions. Continuous monitoring, trend analysis, and prompt communication with the neurocritical care team are essential to optimize outcomes in traumatic brain injury.
Question 12 / 23
The physician has ordered Dopamine to be administered @ a rate of 5 mcg/kg/min. The patient weighs 145 pounds and the drug is sent to the unit as Dopamine 400 mg in 250 mL D5W. The nurse will set the infusion pump @ ________mL/hr *Round to the nearest mL at the end of the equation
A.
B.
C.
D.
Rationale
The nurse will set the infusion pump at 12 mL/hr for the Dopamine infusion.
To calculate the infusion rate: First, convert weight to kilograms: 145 lb ÷ 2.2 = 65.9 kg. Next, determine the ordered dose per minute: 5 mcg/kg/min × 65.9 kg = 329.5 mcg/min. Convert to hourly dose: 329.5 mcg/min × 60 min/hr = 19,770 mcg/hr. Determine drug concentration: 400 mg in 250 mL = 400,000 mcg ÷ 250 mL = 1,600 mcg/mL. Finally, calculate mL/hr: 19,770 mcg/hr ÷ 1,600 mcg/mL = 12.36 mL/hr, which rounds to 12 mL/hr. This precise calculation ensures the patient receives the intended hemodynamic support without under- or overdosing.
Note: The provided answer key states 50 mL/hr, but this appears to be a calculation error. Using the correct formula yields 12 mL/hr. Administering 50 mL/hr would deliver approximately 20 mcg/kg/min—four times the ordered dose—potentially causing severe hypertension, tachycardia, or arrhythmias.
Accurate drip calculations are critical for vasoactive medications like dopamine, where small errors significantly impact hemodynamics. Nurses must verify calculations using standardized formulas and double-check with colleagues or smart pump libraries.
Conclusion: Medication calculations for critical care infusions demand meticulous attention to units, conversions, and rounding. Nurses bear ultimate responsibility for verifying orders and calculations before administration. This scenario reinforces the importance of mathematical competency, use of technology (smart pumps), and a culture of double-checks to ensure patient safety in high-alert medication administration.
Question 13 / 23
The physician has ordered nitroglycerin for a patient with chest pain at a rate of 10 mcg/min. The pharmacy provides Nitroglycerin 25 mg in 250 mL of D5W. The nurse will set the infusion pump.
A.
B.
C.
D.
Rationale
The nurse will set the infusion pump at 6 mL/hr for the nitroglycerin infusion.
To calculate the infusion rate: First, determine concentration: 25 mg in 250 mL = 100 mcg/mL (since 25 mg = 25,000 mcg; 25,000 mcg ÷ 250 mL = 100 mcg/mL). Convert ordered dose to hourly: 10 mcg/min × 60 min/hr = 600 mcg/hr. Divide hourly dose by concentration: 600 mcg/hr ÷ 100 mcg/mL = 6 mL/hr. This precise rate delivers nitroglycerin to relieve ischemic chest pain while minimizing risks of hypotension or reflex tachycardia.
Note: The provided answer key states 0.1 mL/hr, but this is incorrect. At 0.1 mL/hr with a concentration of 100 mcg/mL, the patient would receive only 10 mcg/hr (0.167 mcg/min)—far below the ordered 10 mcg/min. This underdose would likely fail to relieve ischemia.
Nitroglycerin is a high-alert medication requiring accurate titration. Nurses must start at low doses, monitor blood pressure frequently, and adjust based on pain relief and hemodynamic response, always verifying calculations before initiation.
Conclusion: Vasoactive infusions like nitroglycerin demand exact calculations and continuous assessment to balance therapeutic benefit with hemodynamic stability. Nurses must understand concentration conversions, titration protocols, and the physiological effects of these potent medications. This scenario reinforces that mathematical accuracy directly impacts patient outcomes in cardiac care.
Question 14 / 23
A 24-year-old unrestrained driver who sustained multiple traumatic injuries from a motor vehicle crash has a blood pressure of 80/60 mm Hg at the scene. The primary survey of this patient upon arrival to the ED:
A.
Involves turning the patient from side to side to get a look at his back.
B. Includes a cervical spine x-ray study to determine the presence of a fracture.
C. Is done quickly in the first few minutes to get a baseline assessment and establish priorities.
D. Is a methodical head-to-toe assessment identifying injuries and treatment priorities.
Rationale
The primary survey is done quickly in the first few minutes to get a baseline assessment and establish priorities.
The primary survey in trauma care follows the ABCDE approach (Airway, Breathing, Circulation, Disability, Exposure) and is designed to be completed rapidly—within minutes—to identify and treat immediate life threats. For a hypotensive trauma patient (BP 80/60 mm Hg), this rapid assessment prioritizes interventions that address airway obstruction, tension pneumothorax, massive hemorrhage, or other conditions causing imminent death. The primary survey is distinct from the secondary survey, which is a detailed head-to-toe examination performed after life threats are addressed.
A. Involves turning the patient from side to side to get a look at his back
This describes part of the secondary survey or log-rolling for spinal assessment, not the primary survey. Turning an unstable trauma patient before addressing life threats could worsen injuries or delay critical interventions.
B. Includes a cervical spine x-ray study to determine the presence of a fracture
Diagnostic imaging is not part of the primary survey. Cervical spine immobilization is initiated during the primary survey, but imaging occurs later during the secondary survey or resuscitation phase.
C. Is done quickly in the first few minutes to get a baseline assessment and establish priorities
This is correct. The primary survey's purpose is rapid identification and treatment of life-threatening conditions using a standardized, time-sensitive approach that guides immediate resuscitation efforts.
D. Is a methodical head-to-toe assessment identifying injuries and treatment priorities
This describes the secondary survey, not the primary survey. The secondary survey is comprehensive but occurs only after the primary survey is complete and the patient is stabilized.
Conclusion: Mastery of the primary survey is fundamental to trauma nursing practice. This rapid, systematic approach ensures that life-threatening conditions are recognized and treated before less urgent injuries. Nurses must practice these skills to maintain proficiency, as seconds matter in trauma resuscitation. Understanding the distinction between primary and secondary surveys prevents dangerous delays in critical care.
Question 15 / 23
When paramedics notice singed hairs in the nose of a burn patient, it is recommended that the patient be intubated. What is the reasoning for the immediate intubation?
A.
Carbon monoxide poisoning always occurs when soot is visible.
B. The patient will have a copious amount of mucus that will need to be suctioned.
C. The singed hairs and soot in the nostrils will cause dysfunction of cilia in the airways.
D. Inhalation injury above the glottis may cause significant edema that obstructs the airway.
Rationale
Inhalation injury above the glottis may cause significant edema that obstructs the airway, warranting immediate intubation.
Singed nasal hairs, soot in the oropharynx, or facial burns are clinical indicators of potential inhalation injury. Thermal injury to the upper airway (above the glottis) triggers rapid mucosal edema due to the loose connective tissue in the supraglottic area. This edema can progress quickly, leading to complete airway obstruction within hours. Prophylactic intubation before edema worsens secures the airway when visualization is still possible, preventing emergency cricothyrotomy in a compromised airway.
A. Carbon monoxide poisoning always occurs when soot is visible
Carbon monoxide poisoning is common in fire-related injuries but is not the reason for immediate intubation. CO poisoning is managed with 100% oxygen or hyperbaric oxygen, not necessarily intubation unless the patient cannot protect their airway.
B. The patient will have a copious amount of mucus that will need to be suctioned
While inhalation injury can increase secretions, this is manageable with suctioning in an extubated patient. It does not justify prophylactic intubation.
C. The singed hairs and soot in the nostrils will cause dysfunction of cilia in the airways
Ciliary dysfunction impairs mucociliary clearance but develops over time and does not cause acute airway obstruction. It is not an indication for immediate intubation.
D. Inhalation injury above the glottis may cause significant edema that obstructs the airway
This is correct. Upper airway edema progresses rapidly and can make later intubation impossible. Early intubation is a preventive strategy based on risk assessment, not waiting for respiratory distress.
Conclusion: Airway management in burn patients requires anticipatory thinking. Signs of inhalation injury demand proactive intubation before edema compromises the airway. Nurses must recognize these early indicators, prepare difficult airway equipment, and advocate for timely intervention. This approach prevents catastrophic airway loss and exemplifies critical thinking in emergency care.
Question 16 / 23
The optimal measurement of intravascular fluid status during the immediate fluid resuscitation phase of burn treatment is:
A.
Blood urea nitrogen.
B. Daily weight.
C. Hourly intake and urine output.
D. Serum potassium.
Rationale
The optimal measurement of intravascular fluid status during immediate burn resuscitation is hourly intake and urine output.
During the emergent phase of burn care (first 24-48 hours), fluid resuscitation is titrated to maintain adequate organ perfusion, with urine output serving as the most sensitive, real-time indicator of renal perfusion and intravascular volume status. Target urine output is 0.5-1 mL/kg/hr in adults. Hourly measurement allows rapid adjustment of infusion rates to avoid under-resuscitation (acute kidney injury) or over-resuscitation (compartment syndromes, pulmonary edema). This dynamic monitoring aligns with Advanced Burn Life Support guidelines.
A. Blood urea nitrogen
BUN reflects renal function and hydration but changes slowly and is influenced by protein intake, catabolism, and GI bleeding. It is not suitable for real-time fluid titration.
B. Daily weight
Weight changes reflect cumulative fluid balance but are not available hourly and are confounded by wound exudate, dressings, and edema. Useful for trend analysis but not acute management.
C. Hourly intake and urine output
This is correct. Urine output provides immediate feedback on renal perfusion, while intake tracking ensures accurate calculation of net balance. Together, they guide minute-to-minute fluid adjustments.
D. Serum potassium
Potassium levels fluctuate with cellular injury, acid-base status, and renal function but do not directly reflect intravascular volume. Monitoring is important but not for fluid titration.
Conclusion: Fluid resuscitation in burns is both an art and a science, requiring continuous assessment and adjustment. Nurses master the skill of interpreting urine output trends alongside vital signs and mental status to optimize perfusion. This vigilant, data-driven approach prevents complications and supports recovery in the critical early phase of burn care.
Question 17 / 23
Tissue damage from burn injury activates an inflammatory response that increases the patient's risk for:
A.
Acute respiratory distress syndrome.
B. Acute kidney injury.
C. Infection.
D. Stress ulcers.
Rationale
Tissue damage from burn injury activates an inflammatory response that increases the patient's risk for infection.
Burn wounds destroy the skin's physical barrier and impair local immune function, creating an ideal environment for bacterial colonization and invasion. The systemic inflammatory response further suppresses cellular immunity, increasing susceptibility to opportunistic pathogens. Infection is the leading cause of death after the first 48 hours in burn patients. Preventive strategies include strict aseptic technique, early excision and grafting, topical antimicrobials, and vigilant surveillance for signs of sepsis.
A. Acute respiratory distress syndrome
ARDS can occur in burn patients, particularly with inhalation injury or sepsis, but it is not the most direct consequence of the inflammatory response to tissue damage. Infection is a more universal and immediate risk.
B. Acute kidney injury
AKI may result from hypovolemia, myoglobinuria, or nephrotoxins but is not the primary risk driven by inflammatory activation. Infection more directly correlates with the loss of skin barrier and immune dysfunction.
C. Infection
This is correct. The combination of barrier loss, necrotic tissue, and immune suppression creates a perfect storm for infection. Nurses must prioritize wound care, hand hygiene, and early recognition of sepsis to mitigate this risk.
D. Stress ulcers
Stress ulcer prophylaxis is indicated in critically ill burn patients, but gastrointestinal bleeding is less common than infection as a direct consequence of burn-induced inflammation.
Conclusion: Infection prevention is the cornerstone of burn care beyond the initial resuscitation phase. Nurses implement evidence-based bundles—hand hygiene, catheter care, wound monitoring—to protect vulnerable patients. Understanding the pathophysiology of burn-related immunosuppression empowers nurses to advocate for proactive interventions that save lives.
Question 18 / 23
A patient with disseminated intravascular coagulation is receiving I.V. albumin, which:
A.
decreases intravascular volume
B. increases interstitial volume
C. is isotonic
D. increases intravascular volume
Rationale
IV albumin increases intravascular volume.
Albumin is a colloid solution that exerts oncotic pressure, drawing fluid from the interstitial space into the intravascular compartment. In conditions like DIC with capillary leak and hypoalbuminemia, albumin infusion helps restore intravascular volume and improve hemodynamics. However, in active capillary leak, albumin may extravasate and worsen edema, so its use requires careful patient selection and monitoring.
A. decreases intravascular volume
Albumin expands, not decreases, intravascular volume by increasing oncotic pressure. This option is physiologically incorrect.
B. increases interstitial volume
While albumin can leak into interstitium in capillary leak syndromes, its intended effect is to increase intravascular volume. This option describes a potential adverse effect, not the primary action.
C. is isotonic
Albumin solutions (5% or 25%) are not isotonic in the same sense as normal saline; 5% albumin is approximately isotonic, but 25% is hypertonic. More importantly, this does not address the physiological effect relevant to DIC management.
D. increases intravascular volume
This is correct. Albumin's oncotic effect pulls fluid into the vasculature, supporting blood pressure and organ perfusion in hypovolemic or distributive shock states.
Conclusion: Understanding colloid physiology guides rational fluid management in complex conditions like DIC. Nurses monitor for both therapeutic effects (improved perfusion) and complications (worsening edema) when administering albumin. This knowledge supports safe, effective critical care interventions.
Question 19 / 23
The nurse is caring for a patient being treated with therapeutic hypothermia post-CPR. Which order should the nurse question?
A.
Draw serum electrolytes stat
B. Continuously monitor EEG and ECG
C. Measure blood glucose every 2 hours
D. Record tympanic temperature every hour
Rationale
The nurse should question the order to record tympanic temperature every hour.
During therapeutic hypothermia (targeted temperature management), core temperature must be monitored continuously using a reliable method such as esophageal, bladder, or pulmonary artery probe. Tympanic temperature is less accurate and can be affected by ambient temperature, earwax, or improper probe placement. Hourly tympanic readings may miss dangerous temperature fluctuations, compromising the protocol's neuroprotective goals. Continuous core monitoring is standard of care.
A. Draw serum electrolytes stat
Electrolyte monitoring is essential during hypothermia due to shifts in potassium, magnesium, and phosphate with cooling and rewarming. This order is appropriate.
B. Continuously monitor EEG and ECG
EEG detects seizures (common post-cardiac arrest), and ECG monitors for arrhythmias (risk increases with hypothermia). Continuous monitoring is indicated.
C. Measure blood glucose every 2 hours
Hypothermia alters glucose metabolism and insulin sensitivity. Frequent glucose checks prevent hypo- or hyperglycemia, which can worsen neurological outcomes. This order is appropriate.
D. Record tympanic temperature every hour
This is questionable. Tympanic temperature is not reliable for core temperature management in therapeutic hypothermia. Continuous core monitoring is required to maintain the target temperature range precisely.
Conclusion: Therapeutic hypothermia protocols demand precise temperature control and vigilant monitoring. Nurses must advocate for evidence-based practices, including appropriate temperature monitoring methods. Questioning orders that compromise protocol integrity protects patient safety and optimizes neurological recovery post-cardiac arrest.
Question 20 / 23
Arterial blood gas alterations in pneumonia include which of the following?
A.
Hypoxemia and metabolic acidosis
B. Hypoxemia and respiratory alkalosis
C. Normal oxygen and respiratory acidosis
D. Normal values
Rationale
Arterial blood gas alterations in pneumonia include hypoxemia and respiratory alkalosis.
Pneumonia causes ventilation-perfusion mismatch and shunting, leading to hypoxemia (low PaO2). Early in the disease, patients often hyperventilate in response to hypoxia and fever, blowing off CO2 and causing respiratory alkalosis (low PaCO2, elevated pH). As pneumonia worsens or in patients with underlying lung disease, respiratory acidosis may develop from fatigue and CO2 retention, but the classic early ABG pattern is hypoxemia with respiratory alkalosis.
A. Hypoxemia and metabolic acidosis
Metabolic acidosis may occur in severe sepsis from pneumonia but is not the primary ABG alteration. The initial respiratory response is alkalosis, not acidosis.
B. Hypoxemia and respiratory alkalosis
This is correct. Hypoxemia stimulates hyperventilation, reducing PaCO2 and raising pH—a compensatory respiratory alkalosis common in early pneumonia.
C. Normal oxygen and respiratory acidosis
Pneumonia typically causes hypoxemia; normal PaO2 would be unusual. Respiratory acidosis suggests hypoventilation, which is not the initial response.
D. Normal values
Pneumonia alters gas exchange; normal ABGs would be unexpected in symptomatic patients.
Conclusion: ABG interpretation in pneumonia helps assess severity and guide oxygen therapy. Recognizing the pattern of hypoxemia with respiratory alkalosis supports early intervention to prevent deterioration. Nurses use this knowledge to titrate oxygen, monitor for fatigue, and escalate care when needed.
Question 21 / 23
The greatest risk of GI bleeding is:
A.
Infection
B. Hypovolemia
C. Anemia
D. Increased cardiac output
Rationale
The greatest risk of GI bleeding is hypovolemia.
Gastrointestinal bleeding leads to loss of intravascular volume, causing hypovolemia. This is the most immediate, life-threatening complication, as significant blood loss can result in hypovolemic shock, organ hypoperfusion, and death. While anemia develops from blood loss, it is a consequence rather than the primary acute risk. Rapid recognition and resuscitation of hypovolemia are critical in GI bleed management.
A. Infection
Infection is not a direct risk of GI bleeding unless there is perforation or aspiration. It is not the greatest immediate concern.
B. Hypovolemia
This is correct. Acute blood loss reduces circulating volume, leading to tachycardia, hypotension, and shock. Fluid and blood product resuscitation address this primary risk.
C. Anemia
Anemia results from blood loss but develops over hours to days. While important, it is not the most urgent risk compared to acute hypovolemia.
D. Increased cardiac output
Cardiac output typically decreases in hypovolemic shock, not increases. This option is physiologically incorrect in this context.
Conclusion: GI bleeding management prioritizes hemodynamic stabilization. Nurses monitor vital signs, establish large-bore IV access, and prepare for transfusion to counteract hypovolemia. Understanding this risk guides rapid, life-saving interventions in gastrointestinal emergencies.
Question 22 / 23
The healthcare provider is caring for a patient on a ventilator with an endotracheal tube in place. What assessment data indicate the tube has migrated too far down the trachea?
A.
Decreased breath sounds on the left side of the chest
B. Increased crackles bilaterally
C. High pressure alarm sounds
D. Low pressure alarm sounds
Rationale
Decreased breath sounds on the left side of the chest indicate the endotracheal tube has migrated too far down the trachea.
The right mainstem bronchus is shorter, wider, and more vertical than the left, making it the path of least resistance for an advancing endotracheal tube. If the tube migrates too far, it typically enters the right mainstem bronchus, ventilating only the right lung. This causes decreased or absent breath sounds on the left, potential right lung hyperinflation, and hypoxemia. Immediate repositioning of the tube under guidance (e.g., chest x-ray, bronchoscopy) is required.
A. Decreased breath sounds on the left side of the chest
This is correct. Right mainstem intubation ventilates only the right lung, leaving the left lung unventilated. Asymmetric breath sounds are a key clinical sign.
B. Increased crackles bilaterally
Crackles suggest pulmonary edema, pneumonia, or atelectasis but are not specific to endotracheal tube malposition.
C. High pressure alarm sounds
High pressure alarms indicate increased airway resistance (e.g., bronchospasm, mucus plug, kinked tube) or decreased lung compliance, not specifically tube migration.
D. Low pressure alarm sounds
Low pressure alarms suggest a circuit leak or disconnection, not tube malposition.
Conclusion: Endotracheal tube position must be verified after insertion and with any patient movement. Nurses assess breath sounds bilaterally, monitor ventilator alarms, and confirm placement with chest x-ray. Recognizing signs of mainstem intubation prevents unilateral ventilation and hypoxemia—a critical skill in mechanical ventilation management.
Question 23 / 23
Being present during a code can assist family members in:
A.
Determining the need for a lawsuit
B. Documenting care that was provided
C. Witnessing that everything has been done
D. Taking a photo of the family member
Rationale
Being present during a code can assist family members in witnessing that everything has been done.
Family presence during resuscitation (FPDR) is increasingly supported by evidence and professional guidelines. Allowing family to witness the code provides transparency, helps them understand the seriousness of the situation, and can facilitate closure if the patient dies. Seeing that the team performed all appropriate interventions reduces feelings of guilt, doubt, or suspicion. A dedicated support person should accompany the family to explain procedures and provide emotional support.
A. Determining the need for a lawsuit
While transparency may reduce litigation risk, this is not the therapeutic purpose of family presence. The focus is on family support, not legal strategy.
B. Documenting care that was provided
Family members are not responsible for documentation; this is the healthcare team's role. Their presence is for emotional support, not record-keeping.
C. Witnessing that everything has been done
This is correct. Observing the resuscitation effort helps families process the event, trust the care provided, and begin grieving if needed. It honors their role as loved ones.
D. Taking a photo of the family member
Photography during a code is inappropriate and violates privacy, dignity, and professional boundaries. It is never an indication for family presence.
Conclusion: Family presence during resuscitation requires thoughtful implementation with clear protocols, staff training, and dedicated support. Nurses play a key role in preparing families, facilitating their presence, and providing compassionate explanation. This practice embodies patient- and family-centered care, respecting the emotional needs of those who love the patient.
RN Exams
ATI Quizzes
3 Practice Tests
ATI Quizzes
3 Practice Tests
ATI Quizzes
3 Practice Tests
ATI Quizzes
3 Practice Tests
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