CRITICAL CARE NURSING EXAM – PRACTICE QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) PLUS RATIONALES 2026 Q&A | INSTANT DOWNLOAD PDF.
Core Domains
Advanced Cardiovascular Life Support
Hemodynamic Monitoring and Analysis
Mechanical Ventilation and Airway Management
Neurological Crises and Interventions
Sepsis Management and Multi-Organ Dysfunction
End-of-Life Care and Ethical Decision Making
Pharmacological Titration and Vasoactive Agents
Renal Replacement Therapy and Fluid Balance
Introduction
This comprehensive assessment is designed to evaluate the advanced clinical competency and
critical thinking skills required for nursing practice in high-acuity environments. The exam covers a
broad spectrum of critical care topics, ranging from foundational pathophysiology to complex
multi-system failure. Utilizing a mix of knowledge-based and scenario-driven multiple-choice
questions, the assessment emphasizes real-world application, rapid clinical decision-making, and
adherence to evidence-based protocols. Candidates are expected to demonstrate proficiency in
patient assessment, pharmacological management, and the ethical considerations inherent in
intensive care nursing. This tool serves as a rigorous benchmark for professional readiness and
clinical excellence.
1. A patient with a pulmonary artery catheter has a pulmonary artery wedge pressure (PAWP)
of 22 mmHg and a cardiac index of 1.8 L/min/m2. Which condition is most likely?
A. Hypovolemic shock
B. Septic shock
C. Cardiogenic shock
D. Pulmonary embolism
,🟢 C. Option
🔴 RATIONALE: Cardiogenic shock is characterized by an elevated PAWP (indicating fluid backup
in the left heart) and a low cardiac index (indicating poor pump function). Hypovolemia would
show a low PAWP.
2. Which assessment finding is the earliest sign of increased intracranial pressure (ICP) in a
patient following a traumatic brain injury?
A. Ipsilateral pupil dilation
B. Change in level of consciousness
C. Cushing’s triad
D. Decorticate posturing
🟢 B. Option
🔴 RATIONALE: A change in the level of consciousness (restlessness, irritability, or confusion) is
the most sensitive and earliest indicator of neurological deterioration and increased ICP.
3. A patient on mechanical ventilation is fighting the ventilator and the high-pressure alarm
is sounding. What is the nurse's priority action?
A. Increase the sedation dosage
B. Manually bag the patient with 100% oxygen
C. Perform endotracheal suctioning
D. Check the tubing for kinks
🟢 D. Option
🔴 RATIONALE: The first step when a high-pressure alarm sounds is to check for simple,
reversible obstructions like tubing kinks or patient biting. If the cause is not quickly found or the
patient is distressed, manual ventilation is the next step.
4. When managing a patient with Diabetic Ketoacidosis (DKA), which laboratory value must
be corrected before starting an intravenous insulin infusion?
,A. Blood glucose
B. Sodium
C. Potassium
D. Bicarbonate
🟢 C. Option
🔴 RATIONALE: Insulin shifts potassium into the cells. If a patient is hypokalemic, starting insulin
can lead to life-threatening arrhythmias. Potassium must be at least 3.3 mEq/L before insulin
administration.
5. A patient with an arterial line shows a dampened waveform on the monitor. What is the
nurse's first intervention?
A. Level the transducer to the phlebostatic axis
B. Perform a fast-flush square wave test
C. Replace the arterial catheter
D. Zero the monitor
🟢 B. Option
🔴 RATIONALE: A square wave test helps determine if the system is over-damped or under-
damped. Dampening can be caused by air bubbles, clots, or kinks in the tubing.
6. Which medication is considered the first-line vasopressor for a patient in septic shock who
remains hypotensive after fluid resuscitation?
A. Epinephrine
B. Dopamine
C. Norepinephrine
D. Vasopressin
🟢 C. Option
, 🔴 RATIONALE: Evidence-based guidelines (Surviving Sepsis Campaign) recommend
norepinephrine as the first-choice vasopressor to increase mean arterial pressure in septic shock.
7. A patient in the ICU develops sudden-onset atrial fibrillation with a heart rate of 160 bpm
and a blood pressure of 80/40 mmHg. What is the immediate treatment of choice?
A. Intravenous Amiodarone
B. Synchronized cardioversion
C. Carotid sinus massage
D. Diltiazem bolus
🟢 B. Option
🔴 RATIONALE: For unstable tachyarrhythmias (hypotension, altered mental status, chest pain),
synchronized cardioversion is the immediate priority. Medications are used if the patient is stable.
8. What is the primary physiological goal of applying Positive End-Expiratory Pressure (PEEP)
in a patient with Acute Respiratory Distress Syndrome (ARDS)?
A. Decrease the work of breathing
B. Increase functional residual capacity
C. Prevent CO2 retention
D. Decrease the risk of pneumothorax
🟢 B. Option
🔴 RATIONALE: PEEP keeps the alveoli open at the end of expiration, increasing functional
residual capacity and improving oxygenation by reducing shunting.
9. A patient with a chest tube suddenly develops 300 mL of bright red drainage in one hour.
What is the nurse's priority action?
A. Clamp the chest tube
B. Notify the surgeon immediately
(VERIFIED ANSWERS) PLUS RATIONALES 2026 Q&A | INSTANT DOWNLOAD PDF.
Core Domains
Advanced Cardiovascular Life Support
Hemodynamic Monitoring and Analysis
Mechanical Ventilation and Airway Management
Neurological Crises and Interventions
Sepsis Management and Multi-Organ Dysfunction
End-of-Life Care and Ethical Decision Making
Pharmacological Titration and Vasoactive Agents
Renal Replacement Therapy and Fluid Balance
Introduction
This comprehensive assessment is designed to evaluate the advanced clinical competency and
critical thinking skills required for nursing practice in high-acuity environments. The exam covers a
broad spectrum of critical care topics, ranging from foundational pathophysiology to complex
multi-system failure. Utilizing a mix of knowledge-based and scenario-driven multiple-choice
questions, the assessment emphasizes real-world application, rapid clinical decision-making, and
adherence to evidence-based protocols. Candidates are expected to demonstrate proficiency in
patient assessment, pharmacological management, and the ethical considerations inherent in
intensive care nursing. This tool serves as a rigorous benchmark for professional readiness and
clinical excellence.
1. A patient with a pulmonary artery catheter has a pulmonary artery wedge pressure (PAWP)
of 22 mmHg and a cardiac index of 1.8 L/min/m2. Which condition is most likely?
A. Hypovolemic shock
B. Septic shock
C. Cardiogenic shock
D. Pulmonary embolism
,🟢 C. Option
🔴 RATIONALE: Cardiogenic shock is characterized by an elevated PAWP (indicating fluid backup
in the left heart) and a low cardiac index (indicating poor pump function). Hypovolemia would
show a low PAWP.
2. Which assessment finding is the earliest sign of increased intracranial pressure (ICP) in a
patient following a traumatic brain injury?
A. Ipsilateral pupil dilation
B. Change in level of consciousness
C. Cushing’s triad
D. Decorticate posturing
🟢 B. Option
🔴 RATIONALE: A change in the level of consciousness (restlessness, irritability, or confusion) is
the most sensitive and earliest indicator of neurological deterioration and increased ICP.
3. A patient on mechanical ventilation is fighting the ventilator and the high-pressure alarm
is sounding. What is the nurse's priority action?
A. Increase the sedation dosage
B. Manually bag the patient with 100% oxygen
C. Perform endotracheal suctioning
D. Check the tubing for kinks
🟢 D. Option
🔴 RATIONALE: The first step when a high-pressure alarm sounds is to check for simple,
reversible obstructions like tubing kinks or patient biting. If the cause is not quickly found or the
patient is distressed, manual ventilation is the next step.
4. When managing a patient with Diabetic Ketoacidosis (DKA), which laboratory value must
be corrected before starting an intravenous insulin infusion?
,A. Blood glucose
B. Sodium
C. Potassium
D. Bicarbonate
🟢 C. Option
🔴 RATIONALE: Insulin shifts potassium into the cells. If a patient is hypokalemic, starting insulin
can lead to life-threatening arrhythmias. Potassium must be at least 3.3 mEq/L before insulin
administration.
5. A patient with an arterial line shows a dampened waveform on the monitor. What is the
nurse's first intervention?
A. Level the transducer to the phlebostatic axis
B. Perform a fast-flush square wave test
C. Replace the arterial catheter
D. Zero the monitor
🟢 B. Option
🔴 RATIONALE: A square wave test helps determine if the system is over-damped or under-
damped. Dampening can be caused by air bubbles, clots, or kinks in the tubing.
6. Which medication is considered the first-line vasopressor for a patient in septic shock who
remains hypotensive after fluid resuscitation?
A. Epinephrine
B. Dopamine
C. Norepinephrine
D. Vasopressin
🟢 C. Option
, 🔴 RATIONALE: Evidence-based guidelines (Surviving Sepsis Campaign) recommend
norepinephrine as the first-choice vasopressor to increase mean arterial pressure in septic shock.
7. A patient in the ICU develops sudden-onset atrial fibrillation with a heart rate of 160 bpm
and a blood pressure of 80/40 mmHg. What is the immediate treatment of choice?
A. Intravenous Amiodarone
B. Synchronized cardioversion
C. Carotid sinus massage
D. Diltiazem bolus
🟢 B. Option
🔴 RATIONALE: For unstable tachyarrhythmias (hypotension, altered mental status, chest pain),
synchronized cardioversion is the immediate priority. Medications are used if the patient is stable.
8. What is the primary physiological goal of applying Positive End-Expiratory Pressure (PEEP)
in a patient with Acute Respiratory Distress Syndrome (ARDS)?
A. Decrease the work of breathing
B. Increase functional residual capacity
C. Prevent CO2 retention
D. Decrease the risk of pneumothorax
🟢 B. Option
🔴 RATIONALE: PEEP keeps the alveoli open at the end of expiration, increasing functional
residual capacity and improving oxygenation by reducing shunting.
9. A patient with a chest tube suddenly develops 300 mL of bright red drainage in one hour.
What is the nurse's priority action?
A. Clamp the chest tube
B. Notify the surgeon immediately
