NSG 3300 CRITICAL CARE NURSING EXAM
Comprehensive Competency Assessment
2026/2027 Edition | 75 Questions | 10 Core Domains
Actual Exam-Style Questions with Verified Answers | 100% Correct | Graded A+
Aligned with AACN Essentials, NCSBN CJMM, Surviving Sepsis Campaign,
ARDSNet Protocols, and Standard Critical Care Nursing Textbooks
Exam Format: Multiple-Choice + NGN-Style Items (SATA, Bowtie, Trend, Ordered Response,
Case Study)
Estimated Testing Time: 120-150 Minutes | Passing Score: 75-80%
Use as Study Guide Only - Verify with Your Course Instructor
,DOMAIN 1: HEMODYNAMIC MONITORING & INTERPRETATION (Questions 1-8) ----
---------------------------------------------------
1. The nurse is reviewing hemodynamic data for a patient with a pulmonary artery
catheter. The central venous pressure (CVP) reading is 10 mmHg. Which
interpretation is most accurate?
A)) The patient is hypovolemic and needs aggressive fluid resuscitation
B)) The CVP is within the normal range (2-8 mmHg) or mildly elevated,
warranting assessment of the full clinical picture including blood pressure, urine
output, and other hemodynamic parameters
C)) The patient has right-sided heart failure requiring immediate inotrope administration
D)) The reading is artifact and the catheter must be repositioned immediately
Rationale: Normal CVP ranges from 2-8 mmHg, though some sources cite 0-8 mmHg or 2-6
mmHg. A value of 10 mmHg is mildly elevated and may indicate fluid overload, right
ventricular dysfunction, pulmonary hypertension, or tamponade physiology. However, CVP
alone should never guide clinical decisions in isolation. The nurse must integrate this finding
with blood pressure, heart rate, urine output, physical assessment, and additional
hemodynamic parameters (CO, SVR, PAWP) to form a complete clinical picture.
2. A patient's cardiac output (CO) is reported as 3.2 L/min and the body surface area
(BSA) is 1.8 m2. What is the cardiac index (CI), and what does it indicate?
A)) CI = 5.76 L/min/m2; indicates high-output state
B)) CI = 1.78 L/min/m2; indicates low cardiac output requiring intervention
C)) CI = 3.2 L/min/m2; indicates normal cardiac function
D)) CI = 2.5 L/min/m2; indicates borderline low output
Rationale: Cardiac index is calculated by dividing the cardiac output by the body surface
area: CI = CO / BSA = 3..8 = 1.78 L/min/m2. The normal CI range is 2.5-4.0 L/min/m2.
A CI of 1.78 indicates a low cardiac output state, which may result from hypovolemia,
cardiogenic shock, sepsis, or medication effects. This patient requires immediate clinical
assessment and potential intervention such as fluid bolus, inotrope initiation, or vasopressor
adjustment.
3. The nurse notes a damped pulmonary artery waveform on the monitor. Which
action should the nurse take first?
A)) Call the physician immediately for catheter replacement
B)) Check all connections for air bubbles, kinks, or loose stopcocks, and perform
a fast-flush test to assess for over/underdamping
C)) Administer a fluid bolus to improve waveform quality
D)) Zero the transducer to atmospheric pressure at the phlebostatic axis
Rationale: A damped waveform (loss of sharp dicrotic notch, rounded systolic peak, reduced
amplitude) indicates a mechanical problem with the monitoring system rather than a patient
condition change. The nurse should first systematically troubleshoot: check for air bubbles,
loose connections, catheter kinks, or blood clots in the line. A fast-flush test (square wave
test) evaluates for overdamping (no sharp upstroke) or underdamping (oscillations after
flush). Only after troubleshooting should physician notification be considered.
4. Which hemodynamic parameter is most directly affected by afterload?
A)) Central venous pressure (CVP)
B)) Systemic vascular resistance (SVR)
, C)) Pulmonary artery wedge pressure (PAWP)
D)) Mixed venous oxygen saturation (SvO2)
Rationale: Systemic vascular resistance (SVR) is the direct measure of afterload,
representing the resistance the left ventricle must overcome to eject blood. Normal SVR is
800-1200 dynes/sec/cm-5. Elevated SVR indicates increased afterload (vasoconstriction
from hypovolemia, cardiogenic shock, vasopressors), while decreased SVR indicates
decreased afterload (vasodilation from sepsis, anaphylaxis, or vasodilators). Understanding
SVR guides vasopressor and vasodilator therapy.
5. A patient has a pulmonary artery wedge pressure (PAWP) of 25 mmHg. This
finding is most consistent with which condition?
A)) Hypovolemic shock
B)) Left ventricular failure or fluid overload
C)) Pulmonary embolism
D)) Septic shock
Rationale: Normal PAWP (also called PCWP) is 6-12 mmHg and reflects left ventricular
preload. A PAWP of 25 mmHg is significantly elevated and indicates increased left atrial
pressure, most commonly from left ventricular failure (cardiogenic shock), fluid overload,
mitral regurgitation, or aortic stenosis. This elevation causes pulmonary congestion and
may manifest as crackles on auscultation, dyspnea, and hypoxemia. Treatment focuses on
reducing preload (diuretics) and supporting cardiac function.
6. A patient's arterial line waveform shows an elevated dicrotic notch and a widened
pulse pressure. The nurse recognizes this pattern is associated with:
A)) Aortic regurgitation
B)) Hypovolemia
C)) Cardiac tamponade
D)) Increased intracranial pressure
Rationale: Aortic regurgitation produces characteristic arterial waveform changes
including a widened pulse pressure (large difference between systolic and diastolic), a
prominent dicrotic notch, and elevated systolic pressure. The regurgitant volume back into
the left ventricle during diastole lowers diastolic pressure, while increased stroke volume
from the augmented preload raises systolic pressure. This pattern contrasts with
hypovolemia (narrow pulse pressure, small waveform) and tamponade (pulsus paradoxus).
7. The nurse is caring for a patient receiving mechanical ventilation with an arterial
line. Which of the following findings requires immediate intervention? Select all that
apply. [SATA]
A)) Systolic pressure decreases by 15 mmHg during inspiration (pulsus
paradoxus)
B)) Mean arterial pressure (MAP) of 65 mmHg with target MAP of 65 mmHg
C)) Waveform showing dampening with loss of dicrotic notch after patient
repositioning
D)) Presence of a clear, fast-flush square wave on the monitor
Rationale: Pulsus paradoxus (systolic pressure drop > 10-12 mmHg during inspiration) may
indicate cardiac tamponade, severe asthma, or constrictive pericarditis, and requires
immediate evaluation. Waveform dampening after repositioning suggests catheter tip
migration, kinking, or air in the line and requires troubleshooting. A MAP at target and a
Comprehensive Competency Assessment
2026/2027 Edition | 75 Questions | 10 Core Domains
Actual Exam-Style Questions with Verified Answers | 100% Correct | Graded A+
Aligned with AACN Essentials, NCSBN CJMM, Surviving Sepsis Campaign,
ARDSNet Protocols, and Standard Critical Care Nursing Textbooks
Exam Format: Multiple-Choice + NGN-Style Items (SATA, Bowtie, Trend, Ordered Response,
Case Study)
Estimated Testing Time: 120-150 Minutes | Passing Score: 75-80%
Use as Study Guide Only - Verify with Your Course Instructor
,DOMAIN 1: HEMODYNAMIC MONITORING & INTERPRETATION (Questions 1-8) ----
---------------------------------------------------
1. The nurse is reviewing hemodynamic data for a patient with a pulmonary artery
catheter. The central venous pressure (CVP) reading is 10 mmHg. Which
interpretation is most accurate?
A)) The patient is hypovolemic and needs aggressive fluid resuscitation
B)) The CVP is within the normal range (2-8 mmHg) or mildly elevated,
warranting assessment of the full clinical picture including blood pressure, urine
output, and other hemodynamic parameters
C)) The patient has right-sided heart failure requiring immediate inotrope administration
D)) The reading is artifact and the catheter must be repositioned immediately
Rationale: Normal CVP ranges from 2-8 mmHg, though some sources cite 0-8 mmHg or 2-6
mmHg. A value of 10 mmHg is mildly elevated and may indicate fluid overload, right
ventricular dysfunction, pulmonary hypertension, or tamponade physiology. However, CVP
alone should never guide clinical decisions in isolation. The nurse must integrate this finding
with blood pressure, heart rate, urine output, physical assessment, and additional
hemodynamic parameters (CO, SVR, PAWP) to form a complete clinical picture.
2. A patient's cardiac output (CO) is reported as 3.2 L/min and the body surface area
(BSA) is 1.8 m2. What is the cardiac index (CI), and what does it indicate?
A)) CI = 5.76 L/min/m2; indicates high-output state
B)) CI = 1.78 L/min/m2; indicates low cardiac output requiring intervention
C)) CI = 3.2 L/min/m2; indicates normal cardiac function
D)) CI = 2.5 L/min/m2; indicates borderline low output
Rationale: Cardiac index is calculated by dividing the cardiac output by the body surface
area: CI = CO / BSA = 3..8 = 1.78 L/min/m2. The normal CI range is 2.5-4.0 L/min/m2.
A CI of 1.78 indicates a low cardiac output state, which may result from hypovolemia,
cardiogenic shock, sepsis, or medication effects. This patient requires immediate clinical
assessment and potential intervention such as fluid bolus, inotrope initiation, or vasopressor
adjustment.
3. The nurse notes a damped pulmonary artery waveform on the monitor. Which
action should the nurse take first?
A)) Call the physician immediately for catheter replacement
B)) Check all connections for air bubbles, kinks, or loose stopcocks, and perform
a fast-flush test to assess for over/underdamping
C)) Administer a fluid bolus to improve waveform quality
D)) Zero the transducer to atmospheric pressure at the phlebostatic axis
Rationale: A damped waveform (loss of sharp dicrotic notch, rounded systolic peak, reduced
amplitude) indicates a mechanical problem with the monitoring system rather than a patient
condition change. The nurse should first systematically troubleshoot: check for air bubbles,
loose connections, catheter kinks, or blood clots in the line. A fast-flush test (square wave
test) evaluates for overdamping (no sharp upstroke) or underdamping (oscillations after
flush). Only after troubleshooting should physician notification be considered.
4. Which hemodynamic parameter is most directly affected by afterload?
A)) Central venous pressure (CVP)
B)) Systemic vascular resistance (SVR)
, C)) Pulmonary artery wedge pressure (PAWP)
D)) Mixed venous oxygen saturation (SvO2)
Rationale: Systemic vascular resistance (SVR) is the direct measure of afterload,
representing the resistance the left ventricle must overcome to eject blood. Normal SVR is
800-1200 dynes/sec/cm-5. Elevated SVR indicates increased afterload (vasoconstriction
from hypovolemia, cardiogenic shock, vasopressors), while decreased SVR indicates
decreased afterload (vasodilation from sepsis, anaphylaxis, or vasodilators). Understanding
SVR guides vasopressor and vasodilator therapy.
5. A patient has a pulmonary artery wedge pressure (PAWP) of 25 mmHg. This
finding is most consistent with which condition?
A)) Hypovolemic shock
B)) Left ventricular failure or fluid overload
C)) Pulmonary embolism
D)) Septic shock
Rationale: Normal PAWP (also called PCWP) is 6-12 mmHg and reflects left ventricular
preload. A PAWP of 25 mmHg is significantly elevated and indicates increased left atrial
pressure, most commonly from left ventricular failure (cardiogenic shock), fluid overload,
mitral regurgitation, or aortic stenosis. This elevation causes pulmonary congestion and
may manifest as crackles on auscultation, dyspnea, and hypoxemia. Treatment focuses on
reducing preload (diuretics) and supporting cardiac function.
6. A patient's arterial line waveform shows an elevated dicrotic notch and a widened
pulse pressure. The nurse recognizes this pattern is associated with:
A)) Aortic regurgitation
B)) Hypovolemia
C)) Cardiac tamponade
D)) Increased intracranial pressure
Rationale: Aortic regurgitation produces characteristic arterial waveform changes
including a widened pulse pressure (large difference between systolic and diastolic), a
prominent dicrotic notch, and elevated systolic pressure. The regurgitant volume back into
the left ventricle during diastole lowers diastolic pressure, while increased stroke volume
from the augmented preload raises systolic pressure. This pattern contrasts with
hypovolemia (narrow pulse pressure, small waveform) and tamponade (pulsus paradoxus).
7. The nurse is caring for a patient receiving mechanical ventilation with an arterial
line. Which of the following findings requires immediate intervention? Select all that
apply. [SATA]
A)) Systolic pressure decreases by 15 mmHg during inspiration (pulsus
paradoxus)
B)) Mean arterial pressure (MAP) of 65 mmHg with target MAP of 65 mmHg
C)) Waveform showing dampening with loss of dicrotic notch after patient
repositioning
D)) Presence of a clear, fast-flush square wave on the monitor
Rationale: Pulsus paradoxus (systolic pressure drop > 10-12 mmHg during inspiration) may
indicate cardiac tamponade, severe asthma, or constrictive pericarditis, and requires
immediate evaluation. Waveform dampening after repositioning suggests catheter tip
migration, kinking, or air in the line and requires troubleshooting. A MAP at target and a
