Critical Care Nursing and Hemodynamic
Monitoring Practice Exam questions and
correct answers– Updated 2026 (Graded A+)
instant download pdf
Subject: Foundations of Critical Care Nursing (FCCN) Level 1
Subtopic: Hemodynamic Monitoring and Cardiovascular Stability
Question 1: A patient in the ICU is being monitored with an arterial line. The nurse notes that the
dicrotic notch is absent on the arterial waveform tracing. Which physiological or technical
complication is most likely represented by this finding?
A) The patient is experiencing severe peripheral vasoconstriction due to shock.
B) The transducer system is over-damped, resulting in an inaccurate waveform.
C) The patient has developed a critical obstruction in the aorta proximal to the catheter.
D) The arterial catheter has migrated into the right ventricle, causing premature beats.
Correct Answer: B - The transducer system is over-damped, resulting in an inaccurate
waveform.
Rationale: An absent dicrotic notch is a classic sign of an over-damped arterial pressure
waveform. This typically occurs due to air bubbles in the tubing, excessive tubing length, or
loose connections, which attenuate the high-frequency components of the pressure pulse. Option
A would show a narrow pulse pressure but not necessarily an absent dicrotic notch. Option C is
clinically improbable for a standard arterial line setup. Option D would be accompanied by
frequent ectopy and a distinct pressure change, not just the loss of the notch.
Question 2: In a patient with cardiogenic shock, which of the following hemodynamic profiles is
the most accurate reflection of the patient's status?
A) Increased Cardiac Index (CI), Decreased Systemic Vascular Resistance (SVR), Increased
Pulmonary Capillary Wedge Pressure (PCWP)
B) Decreased Cardiac Index (CI), Increased Systemic Vascular Resistance (SVR), Increased
Pulmonary Capillary Wedge Pressure (PCWP)
C) Decreased Cardiac Index (CI), Decreased Systemic Vascular Resistance (SVR), Decreased
Pulmonary Capillary Wedge Pressure (PCWP)
,D) Increased Cardiac Index (CI), Increased Systemic Vascular Resistance (SVR), Decreased
Pulmonary Capillary Wedge Pressure (PCWP)
Correct Answer: B - Decreased Cardiac Index (CI), Increased Systemic Vascular
Resistance (SVR), Increased Pulmonary Capillary Wedge Pressure (PCWP)
Rationale: Cardiogenic shock is characterized by the heart's failure to pump effectively. This
leads to a low cardiac output (low CI), and the body compensates via the sympathetic nervous
system to increase peripheral resistance (high SVR). Because the heart cannot pump the blood
forward, fluid backs up into the lungs, causing elevated left-sided pressures (high PCWP).
Options A, C, and D describe profiles consistent with distributive or hypovolemic states, not
cardiogenic failure.
Question 3: A patient with an intra-aortic balloon pump (IABP) requires frequent assessment.
Which timing error on the console display would indicate that the balloon is inflating too early?
A) Inflation occurs during the diastolic phase immediately after the T-wave.
B) Inflation occurs during the systolic phase, causing an increase in peak systolic pressure.
C) Inflation occurs during the late diastolic phase, causing a late diastolic augmentation.
D) Inflation occurs after the dicrotic notch, resulting in a delayed augmentation.
Correct Answer: B - Inflation occurs during the systolic phase, causing an increase in peak
systolic pressure.
Rationale: The IABP is designed to inflate during diastole (after aortic valve closure, indicated
by the dicrotic notch) to increase coronary perfusion. If it inflates too early, it encroaches into
late systole, causing the ventricle to pump against an increased afterload, which is visualized as
a spike before or during the systolic peak. Option C and D represent late inflation, which misses
the window for optimal coronary perfusion.
Question 4: Which of the following interventions is the priority for a patient exhibiting signs of
cardiac tamponade after cardiac surgery?
A) Administering a bolus of intravenous fluids to maintain preload.
B) Increasing the infusion rate of positive inotropes to improve contractility.
C) Preparing the patient for emergency pericardiocentesis or surgical re-exploration.
D) Initiating mechanical ventilation to support respiratory effort.
Correct Answer: C - Preparing the patient for emergency pericardiocentesis or surgical re-
exploration.
,Rationale: Cardiac tamponade is a life-threatening emergency caused by fluid accumulation in
the pericardial sac, which prevents effective diastolic filling. The definitive treatment is the
removal of the fluid (pericardiocentesis) or surgical relief of the pressure. While fluids (Option
A) may temporarily increase preload, they are merely a bridge to definitive treatment, not the
priority. Inotropes (Option B) will not overcome the mechanical compression. Ventilation
(Option D) is secondary to mechanical decompression.
Question 5: A nurse is analyzing the central venous pressure (CVP) waveform. The "a" wave
corresponds to which mechanical event in the cardiac cycle?
A) Atrial contraction.
B) Tricuspid valve closure.
C) Ventricular relaxation.
D) Atrial filling.
Correct Answer: A - Atrial contraction.
Rationale: In the CVP waveform, the "a" wave is produced by the contraction of the right
atrium. The "c" wave is caused by the tricuspid valve bulging into the atrium during early
ventricular contraction, and the "v" wave is caused by atrial filling against a closed tricuspid
valve. Option D is the v-wave, not the a-wave.
Subtopic: Respiratory Failure and Mechanical Ventilation
Question 6: Which parameter is the most sensitive indicator of a patient’s readiness to be weaned
from mechanical ventilation?
A) Tidal Volume (Vt)
B) Rapid Shallow Breathing Index (RSBI)
C) Fraction of Inspired Oxygen (FiO2)
D) Peak Inspiratory Pressure (PIP)
Correct Answer: B - Rapid Shallow Breathing Index (RSBI)
Rationale: The RSBI ($f/Vt$) is widely recognized as the most reliable predictor of weaning
success. An index of less than 105 suggests that the patient can likely breathe spontaneously
without respiratory muscle fatigue. Tidal volume (Option A) alone is a poor indicator. FiO2
(Option C) measures gas exchange but not respiratory work, and PIP (Option D) measures
airway resistance/lung compliance.
, Question 7: A patient is on assist-control ventilation. The nurse notes the patient is "fighting the
ventilator," and the pressure limit alarm is frequently triggering. What is the most common cause
of high peak airway pressure in this scenario?
A) Patient-ventilator dyssynchrony due to secretions or coughing.
B) Disconnection of the ventilator circuit from the endotracheal tube.
C) Development of a pneumothorax on the left side.
D) The patient has developed significant hypocapnia.
Correct Answer: A - Patient-ventilator dyssynchrony due to secretions or coughing.
Rationale: High peak airway pressure alarms in assist-control modes are most commonly
triggered by increased resistance in the airway, often due to mucus plugs, secretions, or the
patient coughing against the mandatory breath. While a pneumothorax (Option C) would also
raise pressure, secretions are a significantly more frequent cause in the acute ICU setting.
Option B would trigger a low pressure alarm. Option D is a metabolic issue, not a mechanical
pressure issue.
Question 8: During the assessment of a patient with Acute Respiratory Distress Syndrome
(ARDS), the nurse notes a PaO2/FiO2 ratio of 150. Based on the Berlin Definition, how is this
categorized?
A) Mild ARDS
B) Moderate ARDS
C) Severe ARDS
D) Normal lung function
Correct Answer: B - Moderate ARDS
Rationale: According to the Berlin Definition, ARDS is classified based on the PaO2/FiO2 ratio:
Mild (200–300 mmHg), Moderate (100–200 mmHg), and Severe (<100 mmHg). A ratio of 150
places the patient in the Moderate category. Option A and C do not align with this criteria.
Question 9: Why is "Permissive Hypercapnia" sometimes utilized in the management of patients
with ARDS?
A) To lower the oxygen requirement by inducing metabolic acidosis.
B) To protect the lungs from Volutrauma by limiting tidal volumes.
Monitoring Practice Exam questions and
correct answers– Updated 2026 (Graded A+)
instant download pdf
Subject: Foundations of Critical Care Nursing (FCCN) Level 1
Subtopic: Hemodynamic Monitoring and Cardiovascular Stability
Question 1: A patient in the ICU is being monitored with an arterial line. The nurse notes that the
dicrotic notch is absent on the arterial waveform tracing. Which physiological or technical
complication is most likely represented by this finding?
A) The patient is experiencing severe peripheral vasoconstriction due to shock.
B) The transducer system is over-damped, resulting in an inaccurate waveform.
C) The patient has developed a critical obstruction in the aorta proximal to the catheter.
D) The arterial catheter has migrated into the right ventricle, causing premature beats.
Correct Answer: B - The transducer system is over-damped, resulting in an inaccurate
waveform.
Rationale: An absent dicrotic notch is a classic sign of an over-damped arterial pressure
waveform. This typically occurs due to air bubbles in the tubing, excessive tubing length, or
loose connections, which attenuate the high-frequency components of the pressure pulse. Option
A would show a narrow pulse pressure but not necessarily an absent dicrotic notch. Option C is
clinically improbable for a standard arterial line setup. Option D would be accompanied by
frequent ectopy and a distinct pressure change, not just the loss of the notch.
Question 2: In a patient with cardiogenic shock, which of the following hemodynamic profiles is
the most accurate reflection of the patient's status?
A) Increased Cardiac Index (CI), Decreased Systemic Vascular Resistance (SVR), Increased
Pulmonary Capillary Wedge Pressure (PCWP)
B) Decreased Cardiac Index (CI), Increased Systemic Vascular Resistance (SVR), Increased
Pulmonary Capillary Wedge Pressure (PCWP)
C) Decreased Cardiac Index (CI), Decreased Systemic Vascular Resistance (SVR), Decreased
Pulmonary Capillary Wedge Pressure (PCWP)
,D) Increased Cardiac Index (CI), Increased Systemic Vascular Resistance (SVR), Decreased
Pulmonary Capillary Wedge Pressure (PCWP)
Correct Answer: B - Decreased Cardiac Index (CI), Increased Systemic Vascular
Resistance (SVR), Increased Pulmonary Capillary Wedge Pressure (PCWP)
Rationale: Cardiogenic shock is characterized by the heart's failure to pump effectively. This
leads to a low cardiac output (low CI), and the body compensates via the sympathetic nervous
system to increase peripheral resistance (high SVR). Because the heart cannot pump the blood
forward, fluid backs up into the lungs, causing elevated left-sided pressures (high PCWP).
Options A, C, and D describe profiles consistent with distributive or hypovolemic states, not
cardiogenic failure.
Question 3: A patient with an intra-aortic balloon pump (IABP) requires frequent assessment.
Which timing error on the console display would indicate that the balloon is inflating too early?
A) Inflation occurs during the diastolic phase immediately after the T-wave.
B) Inflation occurs during the systolic phase, causing an increase in peak systolic pressure.
C) Inflation occurs during the late diastolic phase, causing a late diastolic augmentation.
D) Inflation occurs after the dicrotic notch, resulting in a delayed augmentation.
Correct Answer: B - Inflation occurs during the systolic phase, causing an increase in peak
systolic pressure.
Rationale: The IABP is designed to inflate during diastole (after aortic valve closure, indicated
by the dicrotic notch) to increase coronary perfusion. If it inflates too early, it encroaches into
late systole, causing the ventricle to pump against an increased afterload, which is visualized as
a spike before or during the systolic peak. Option C and D represent late inflation, which misses
the window for optimal coronary perfusion.
Question 4: Which of the following interventions is the priority for a patient exhibiting signs of
cardiac tamponade after cardiac surgery?
A) Administering a bolus of intravenous fluids to maintain preload.
B) Increasing the infusion rate of positive inotropes to improve contractility.
C) Preparing the patient for emergency pericardiocentesis or surgical re-exploration.
D) Initiating mechanical ventilation to support respiratory effort.
Correct Answer: C - Preparing the patient for emergency pericardiocentesis or surgical re-
exploration.
,Rationale: Cardiac tamponade is a life-threatening emergency caused by fluid accumulation in
the pericardial sac, which prevents effective diastolic filling. The definitive treatment is the
removal of the fluid (pericardiocentesis) or surgical relief of the pressure. While fluids (Option
A) may temporarily increase preload, they are merely a bridge to definitive treatment, not the
priority. Inotropes (Option B) will not overcome the mechanical compression. Ventilation
(Option D) is secondary to mechanical decompression.
Question 5: A nurse is analyzing the central venous pressure (CVP) waveform. The "a" wave
corresponds to which mechanical event in the cardiac cycle?
A) Atrial contraction.
B) Tricuspid valve closure.
C) Ventricular relaxation.
D) Atrial filling.
Correct Answer: A - Atrial contraction.
Rationale: In the CVP waveform, the "a" wave is produced by the contraction of the right
atrium. The "c" wave is caused by the tricuspid valve bulging into the atrium during early
ventricular contraction, and the "v" wave is caused by atrial filling against a closed tricuspid
valve. Option D is the v-wave, not the a-wave.
Subtopic: Respiratory Failure and Mechanical Ventilation
Question 6: Which parameter is the most sensitive indicator of a patient’s readiness to be weaned
from mechanical ventilation?
A) Tidal Volume (Vt)
B) Rapid Shallow Breathing Index (RSBI)
C) Fraction of Inspired Oxygen (FiO2)
D) Peak Inspiratory Pressure (PIP)
Correct Answer: B - Rapid Shallow Breathing Index (RSBI)
Rationale: The RSBI ($f/Vt$) is widely recognized as the most reliable predictor of weaning
success. An index of less than 105 suggests that the patient can likely breathe spontaneously
without respiratory muscle fatigue. Tidal volume (Option A) alone is a poor indicator. FiO2
(Option C) measures gas exchange but not respiratory work, and PIP (Option D) measures
airway resistance/lung compliance.
, Question 7: A patient is on assist-control ventilation. The nurse notes the patient is "fighting the
ventilator," and the pressure limit alarm is frequently triggering. What is the most common cause
of high peak airway pressure in this scenario?
A) Patient-ventilator dyssynchrony due to secretions or coughing.
B) Disconnection of the ventilator circuit from the endotracheal tube.
C) Development of a pneumothorax on the left side.
D) The patient has developed significant hypocapnia.
Correct Answer: A - Patient-ventilator dyssynchrony due to secretions or coughing.
Rationale: High peak airway pressure alarms in assist-control modes are most commonly
triggered by increased resistance in the airway, often due to mucus plugs, secretions, or the
patient coughing against the mandatory breath. While a pneumothorax (Option C) would also
raise pressure, secretions are a significantly more frequent cause in the acute ICU setting.
Option B would trigger a low pressure alarm. Option D is a metabolic issue, not a mechanical
pressure issue.
Question 8: During the assessment of a patient with Acute Respiratory Distress Syndrome
(ARDS), the nurse notes a PaO2/FiO2 ratio of 150. Based on the Berlin Definition, how is this
categorized?
A) Mild ARDS
B) Moderate ARDS
C) Severe ARDS
D) Normal lung function
Correct Answer: B - Moderate ARDS
Rationale: According to the Berlin Definition, ARDS is classified based on the PaO2/FiO2 ratio:
Mild (200–300 mmHg), Moderate (100–200 mmHg), and Severe (<100 mmHg). A ratio of 150
places the patient in the Moderate category. Option A and C do not align with this criteria.
Question 9: Why is "Permissive Hypercapnia" sometimes utilized in the management of patients
with ARDS?
A) To lower the oxygen requirement by inducing metabolic acidosis.
B) To protect the lungs from Volutrauma by limiting tidal volumes.
