CEA CRITICAL CARE NURSING QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS) PLUS
RATIONALES 2026 Q&A | LATEST EXAM UPDATE 2026/2027.
Core Domains:
Cardiovascular Critical Care & Hemodynamic Monitoring
Pulmonary Critical Care & Mechanical Ventilation
Neurological Critical Care & Intracranial Dynamics
Renal Critical Care & Continuous Renal Replacement Therapy
Endocrine & Metabolic Emergencies
Infectious Disease & Sepsis Management
Multisystem Organ Dysfunction & Trauma
Pharmacology & Vasoactive Therapies
Ethics, Legal Standards, and End-of-Life Care
Professional Practice & Quality Improvement
Introduction
This comprehensive examination is designed to rigorously assess the advanced theoretical knowledge and applied
clinical judgment required for excellence in critical care nursing. The following questions evaluate a clinician's
ability to synthesize pathophysiological concepts, interpret complex monitoring data, and prioritize life-saving
interventions. Through a combination of foundational principles, regulatory standards, and intricate, real-world
scenarios, this exam tests critical thinking, ethical reasoning, and rapid decision-making essential for managing
,critically ill patients. Each question is structured as a multiple-choice item to provide a standardized yet
challenging assessment of the core competencies expected of a critical care nurse.
SECTION ONE: QUESTIONS 1-100
1. A patient is in cardiogenic shock. Which hemodynamic parameter is most indicative of inadequate tissue
perfusion?
A. Cardiac Index (CI) of 2.8 L/min/m²
B. Pulmonary Artery Wedge Pressure (PAWP) of 18 mmHg
C. Central Venous Pressure (CVP) of 10 mmHg
D. Mixed Venous Oxygen Saturation (SvO2) of 55%
🟢D
🔴 RATIONALE: A normal SvO2 is 65-75%. A value of 55% indicates increased oxygen extraction due to low
cardiac output, reflecting inadequate tissue perfusion. The other options are not as directly indicative of
perfusion; a CI of 2.8 is low but not as severe, and PAWP and CVP reflect volume status, not perfusion.
2. A patient with a subarachnoid hemorrhage is experiencing severe vasospasms. Which intervention is the
priority?
A. Administering anticoagulants
B. Maintaining strict bed rest
C. Starting Nimodipine as prescribed
D. Increasing the ventilator rate
,🟢C
🔴 RATIONALE: Nimodipine is a calcium channel blocker specifically indicated to reduce the incidence and
severity of vasospasms following subarachnoid hemorrhage. Anticoagulants are contraindicated, bed rest is
supportive but not the priority intervention, and adjusting ventilator rate does not treat the underlying
vasospasm.
3. A nurse is caring for a patient with a chest tube to water-seal drainage for a pneumothorax. Which finding
requires immediate intervention?
A. Continuous bubbling in the water-seal chamber
B. Tidaling in the water-seal chamber
C. Output of 75 mL of serosanguineous fluid in 8 hours
D. Subcutaneous emphysema at the insertion site
🟢A
🔴 RATIONALE: Continuous bubbling in the water-seal chamber indicates a leak in the system, either from the
patient (which could be an air leak from a new or unresolved pneumothorax) or from the tubing/equipment.
Tidaling is a normal finding, 75 mL is a typical drainage amount, and mild subcutaneous emphysema is often
benign but should be monitored. The air leak requires immediate assessment and intervention.
4. What is the most appropriate initial action when caring for a patient who has a sudden onset of
respiratory distress and absent breath sounds on one side, immediately following central line insertion?
A. Administer a bronchodilator
B. Prepare for emergency needle decompression
C. Obtain a stat chest x-ray
D. Increase the FiO2 on the ventilator
, 🟢B
🔴 RATIONALE: The scenario describes a tension pneumothorax, a life-threatening complication of central line
placement. Absent breath sounds on one side with respiratory distress indicate air trapping, requiring
immediate needle decompression to relieve pressure. Waiting for an x-ray or administering a bronchodilator
would be inappropriate; increasing FiO2 is a temporizing measure, but needle decompression is the definitive
emergency intervention.
5. Which EKG finding is most characteristic of hyperkalemia?
A. Peaked T-waves
B. Prolonged PR interval
C. U-waves
D. ST-segment depression
🟢A
🔴 RATIONALE: Peaked, "tented" T-waves are an early and classic sign of hyperkalemia. U-waves are associated
with hypokalemia. Both a prolonged PR interval and ST-segment depression can occur with hyperkalemia but
are not the most characteristic initial finding; peaked T-waves are the hallmark.
6. A patient is in pulseless ventricular tachycardia. After defibrillation and CPR, the patient's rhythm becomes
asystole. Which medication is indicated as a priority?
A. Atropine 1 mg IV
B. Epinephrine 1 mg IV
C. Amiodarone 300 mg IV
D. Magnesium sulfate 2 g IV
🟢B
🔴 RATIONALE: Epinephrine is the primary drug for asystole and pulseless electrical activity (PEA) in the ACLS
RATIONALES 2026 Q&A | LATEST EXAM UPDATE 2026/2027.
Core Domains:
Cardiovascular Critical Care & Hemodynamic Monitoring
Pulmonary Critical Care & Mechanical Ventilation
Neurological Critical Care & Intracranial Dynamics
Renal Critical Care & Continuous Renal Replacement Therapy
Endocrine & Metabolic Emergencies
Infectious Disease & Sepsis Management
Multisystem Organ Dysfunction & Trauma
Pharmacology & Vasoactive Therapies
Ethics, Legal Standards, and End-of-Life Care
Professional Practice & Quality Improvement
Introduction
This comprehensive examination is designed to rigorously assess the advanced theoretical knowledge and applied
clinical judgment required for excellence in critical care nursing. The following questions evaluate a clinician's
ability to synthesize pathophysiological concepts, interpret complex monitoring data, and prioritize life-saving
interventions. Through a combination of foundational principles, regulatory standards, and intricate, real-world
scenarios, this exam tests critical thinking, ethical reasoning, and rapid decision-making essential for managing
,critically ill patients. Each question is structured as a multiple-choice item to provide a standardized yet
challenging assessment of the core competencies expected of a critical care nurse.
SECTION ONE: QUESTIONS 1-100
1. A patient is in cardiogenic shock. Which hemodynamic parameter is most indicative of inadequate tissue
perfusion?
A. Cardiac Index (CI) of 2.8 L/min/m²
B. Pulmonary Artery Wedge Pressure (PAWP) of 18 mmHg
C. Central Venous Pressure (CVP) of 10 mmHg
D. Mixed Venous Oxygen Saturation (SvO2) of 55%
🟢D
🔴 RATIONALE: A normal SvO2 is 65-75%. A value of 55% indicates increased oxygen extraction due to low
cardiac output, reflecting inadequate tissue perfusion. The other options are not as directly indicative of
perfusion; a CI of 2.8 is low but not as severe, and PAWP and CVP reflect volume status, not perfusion.
2. A patient with a subarachnoid hemorrhage is experiencing severe vasospasms. Which intervention is the
priority?
A. Administering anticoagulants
B. Maintaining strict bed rest
C. Starting Nimodipine as prescribed
D. Increasing the ventilator rate
,🟢C
🔴 RATIONALE: Nimodipine is a calcium channel blocker specifically indicated to reduce the incidence and
severity of vasospasms following subarachnoid hemorrhage. Anticoagulants are contraindicated, bed rest is
supportive but not the priority intervention, and adjusting ventilator rate does not treat the underlying
vasospasm.
3. A nurse is caring for a patient with a chest tube to water-seal drainage for a pneumothorax. Which finding
requires immediate intervention?
A. Continuous bubbling in the water-seal chamber
B. Tidaling in the water-seal chamber
C. Output of 75 mL of serosanguineous fluid in 8 hours
D. Subcutaneous emphysema at the insertion site
🟢A
🔴 RATIONALE: Continuous bubbling in the water-seal chamber indicates a leak in the system, either from the
patient (which could be an air leak from a new or unresolved pneumothorax) or from the tubing/equipment.
Tidaling is a normal finding, 75 mL is a typical drainage amount, and mild subcutaneous emphysema is often
benign but should be monitored. The air leak requires immediate assessment and intervention.
4. What is the most appropriate initial action when caring for a patient who has a sudden onset of
respiratory distress and absent breath sounds on one side, immediately following central line insertion?
A. Administer a bronchodilator
B. Prepare for emergency needle decompression
C. Obtain a stat chest x-ray
D. Increase the FiO2 on the ventilator
, 🟢B
🔴 RATIONALE: The scenario describes a tension pneumothorax, a life-threatening complication of central line
placement. Absent breath sounds on one side with respiratory distress indicate air trapping, requiring
immediate needle decompression to relieve pressure. Waiting for an x-ray or administering a bronchodilator
would be inappropriate; increasing FiO2 is a temporizing measure, but needle decompression is the definitive
emergency intervention.
5. Which EKG finding is most characteristic of hyperkalemia?
A. Peaked T-waves
B. Prolonged PR interval
C. U-waves
D. ST-segment depression
🟢A
🔴 RATIONALE: Peaked, "tented" T-waves are an early and classic sign of hyperkalemia. U-waves are associated
with hypokalemia. Both a prolonged PR interval and ST-segment depression can occur with hyperkalemia but
are not the most characteristic initial finding; peaked T-waves are the hallmark.
6. A patient is in pulseless ventricular tachycardia. After defibrillation and CPR, the patient's rhythm becomes
asystole. Which medication is indicated as a priority?
A. Atropine 1 mg IV
B. Epinephrine 1 mg IV
C. Amiodarone 300 mg IV
D. Magnesium sulfate 2 g IV
🟢B
🔴 RATIONALE: Epinephrine is the primary drug for asystole and pulseless electrical activity (PEA) in the ACLS
