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BKAT 9R Actual Exam 2026/2027: Comprehensive
Questions with Multiple Choices | Verified & Revised
Answers for Critical Care Success – Pass Guaranteed -
A+ Graded
Section 1: Cardiovascular System (18 Questions)
Q1: A patient with an arterial line has a waveform that appears dampened with a slurred upstroke
and absent dicrotic notch. The nurse suspects:
• A. Overdamping due to air bubbles in the tubing
• B. Underdamping causing artifactual hypertension
• C. Properly functioning arterial line system
• D. Patient experiencing severe vasoconstriction
Correct Answer: A Rationale: An overdamped waveform shows a slurred upstroke, absent
dicrotic notch, and falsely low systolic pressure. This commonly results from air bubbles, blood
clots, kinked tubing, or loose connections. Underdamping (Option B) would show a sharp
systolic peak with ringing artifact. The dicrotic notch should be visible in a normal, properly
functioning system (Option C). While vasoconstriction (Option D) affects amplitude, it does not
eliminate the dicrotic notch. Per AACN guidelines, the square wave test confirms damping—an
overdamped system shows a gradual return to baseline without oscillations.
Q2: During hemodynamic monitoring, the nurse zeros the transducer at the phlebostatic axis.
This landmark is located at:
• A. The fourth intercostal space at the midaxillary line
• B. The fifth intercostal space at the midaxillary line
• C. The angle of Louis at the sternal border
• D. The xiphoid process level
Correct Answer: A Rationale: The phlebostatic axis is located at the fourth intercostal space,
midaxillary line—level with the right atrium. This ensures accurate measurement of pressures
referenced to atmospheric pressure. The fifth intercostal space (Option B) is too low and would
yield falsely elevated readings. The angle of Louis (Option C) and xiphoid process (Option D)
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are not standard zeroing landmarks. Consistent leveling is critical; changes in patient position
require re-zeroing to maintain measurement accuracy per BKAT 9R standards.
Q3: A patient has the following hemodynamic readings: MAP 65 mmHg, CVP 4 mmHg, PAOP 8
mmHg, CI 2.0 L/min/m². The nurse recognizes this profile as consistent with:
• A. Cardiogenic shock
• B. Hypovolemic shock
• C. Septic shock (hyperdynamic phase)
• D. Cardiac tamponade
Correct Answer: B Rationale: This profile demonstrates low CVP (normal 2-8, but on lower
end indicating reduced preload), low CI (normal 2.5-4.0), and low-normal PAOP with low
MAP—classic for hypovolemic shock. Cardiogenic shock (Option A) would show elevated CVP
and PAOP with low CI. Septic shock (Option C) typically presents with high or normal CI
(hyperdynamic) and low SVR. Cardiac tamponade (Option D) shows equalization of pressures
(CVP = PAOP = PAD) with pulsus paradoxus. The low filling pressures with low output indicate
volume depletion requiring fluid resuscitation per Surviving Sepsis Campaign guidelines.
Q4: The nurse is caring for a patient with a pulmonary artery catheter. The following pressures
are obtained: RA 12 mmHg, PA 48/28 mmHg (mean 35), PAOP 10 mmHg. These values
indicate:
• A. Left ventricular failure
• B. Pulmonary hypertension
• C. Mitral stenosis
• D. Normal pulmonary pressures
Correct Answer: B Rationale: Elevated PA pressures (normal systolic 15-30, diastolic 8-15,
mean 10-20) with normal PAOP (normal 6-12) indicate pulmonary hypertension—elevated
pressures in the pulmonary circuit without left heart failure. Left ventricular failure (Option A)
would show elevated PAOP (>18 mmHg). Mitral stenosis (Option C) would cause elevated
PAOP due to impaired left atrial emptying. Normal PA systolic is <30 mmHg; this patient's mean
PA pressure of 35 mmHg meets criteria for pulmonary hypertension (mean PA pressure >25
mmHg at rest). The gradient between PAOP and PA mean confirms precapillary pulmonary
hypertension.
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Q5: A patient in sinus bradycardia (HR 38) becomes hypotensive (SBP 78) and confused.
Following ACLS guidelines, the nurse should prepare to administer:
• A. Atropine 0.5 mg IV every 3-5 minutes (maximum 3 mg)
• B. Atropine 1 mg IV push immediately
• C. Epinephrine 1 mg IV every 3-5 minutes
• D. Adenosine 6 mg rapid IV push
Correct Answer: A Rationale: Per 2025 ACLS guidelines for symptomatic bradycardia,
atropine remains first-line at 0.5 mg IV every 3-5 minutes to a maximum of 3 mg. While 1 mg
(Option B) was previously recommended, current dosing emphasizes smaller incremental doses
to avoid paradoxical bradycardia. Epinephrine (Option C) is used if atropine fails or for unstable
patients requiring transcutaneous pacing. Adenosine (Option D) is contraindicated in
bradycardia—it causes transient heart block and is used for SVT. The patient meets criteria for
unstable bradycardia (hypotension, altered mental status), requiring immediate intervention.
Q6: The nurse observes the following rhythm on the monitor: irregularly irregular rhythm, no
discernible P waves, fibrillatory waves present, ventricular rate 142. The patient is
hemodynamically stable. The priority intervention is:
• A. Immediate synchronized cardioversion at 200J
• B. Administration of amiodarone 150 mg IV over 10 minutes
• C. Administration of diltiazem 0.25 mg/kg IV push
• D. Administration of metoprolol 5 mg IV every 5 minutes
Correct Answer: C Rationale: This describes atrial fibrillation with rapid ventricular response
(RVR). For hemodynamically stable patients, rate control is priority. Diltiazem (Option C) is the
preferred agent for rapid rate control in AF with RVR (0.25 mg/kg IV over 2 minutes, then 5-15
mg/hr infusion). Cardioversion (Option A) is indicated only if unstable. Amiodarone (Option B)
is used for rhythm control or if rate control fails, but has slower onset. Metoprolol (Option D) is
an alternative but contraindicated in decompensated heart failure or hypotension. Current AACN
guidelines emphasize diltiazem as first-line for AF with RVR in stable patients without heart
failure.
Q7: A patient with an ICD delivers a shock while the nurse is providing care. The nurse should:
• A. Immediately remove all monitoring leads to prevent further shocks
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• B. Continue care while ensuring no one is touching the patient during shock delivery
• C. Place a magnet over the device to disable it
• D. Call code blue and begin CPR immediately
Correct Answer: B Rationale: ICD shocks are therapeutic interventions for life-threatening
arrhythmias. The nurse should continue monitoring and care, ensuring personal safety by not
touching the patient during shock delivery (clear warning). Removing leads (Option A)
compromises monitoring. Magnet application (Option C) is indicated only for inappropriate
shocks or during procedures with electromagnetic interference, not routine therapeutic shocks.
CPR (Option D) is indicated only if the patient becomes pulseless post-shock. Post-shock
assessment includes verifying rhythm, checking for perfusion, and documenting the event per
AACN guidelines.
Q8: Following acute MI, a patient's cardiac output drops to 3.5 L/min, PCWP rises to 24 mmHg,
and SBP falls to 82 mmHg. The nurse recognizes this as:
• A. Right ventricular infarction
• B. Cardiogenic shock
• C. Papillary muscle rupture
• D. Ventricular septal defect
Correct Answer: B Rationale: This hemodynamic profile—low CO, elevated PCWP (>18
indicates left heart failure), and hypotension—defines cardiogenic shock (systolic BP <90, CI
<2.2, PCWP >15). Right ventricular infarction (Option A) shows elevated RA/CVP with
normal/low PCWP. Papillary muscle rupture (Option C) causes acute severe mitral regurgitation
with new murmur and pulmonary edema. VSD (Option D) shows oxygen saturation step-up
between RA and PA and harsh holosystolic murmur. Cardiogenic shock carries 40-50% mortality
and requires inotropic support, IABP consideration, and emergent revascularization per
ACC/AHA guidelines.
Q9: A patient on a norepinephrine infusion at 15 mcg/min has MAP 58 mmHg. The nurse
should:
• A. Increase norepinephrine to achieve MAP >65 mmHg
• B. Add vasopressin 0.03 units/min as second-line agent
• C. Initiate dobutamine for inotropic support
BKAT 9R Actual Exam 2026/2027: Comprehensive
Questions with Multiple Choices | Verified & Revised
Answers for Critical Care Success – Pass Guaranteed -
A+ Graded
Section 1: Cardiovascular System (18 Questions)
Q1: A patient with an arterial line has a waveform that appears dampened with a slurred upstroke
and absent dicrotic notch. The nurse suspects:
• A. Overdamping due to air bubbles in the tubing
• B. Underdamping causing artifactual hypertension
• C. Properly functioning arterial line system
• D. Patient experiencing severe vasoconstriction
Correct Answer: A Rationale: An overdamped waveform shows a slurred upstroke, absent
dicrotic notch, and falsely low systolic pressure. This commonly results from air bubbles, blood
clots, kinked tubing, or loose connections. Underdamping (Option B) would show a sharp
systolic peak with ringing artifact. The dicrotic notch should be visible in a normal, properly
functioning system (Option C). While vasoconstriction (Option D) affects amplitude, it does not
eliminate the dicrotic notch. Per AACN guidelines, the square wave test confirms damping—an
overdamped system shows a gradual return to baseline without oscillations.
Q2: During hemodynamic monitoring, the nurse zeros the transducer at the phlebostatic axis.
This landmark is located at:
• A. The fourth intercostal space at the midaxillary line
• B. The fifth intercostal space at the midaxillary line
• C. The angle of Louis at the sternal border
• D. The xiphoid process level
Correct Answer: A Rationale: The phlebostatic axis is located at the fourth intercostal space,
midaxillary line—level with the right atrium. This ensures accurate measurement of pressures
referenced to atmospheric pressure. The fifth intercostal space (Option B) is too low and would
yield falsely elevated readings. The angle of Louis (Option C) and xiphoid process (Option D)
,2
are not standard zeroing landmarks. Consistent leveling is critical; changes in patient position
require re-zeroing to maintain measurement accuracy per BKAT 9R standards.
Q3: A patient has the following hemodynamic readings: MAP 65 mmHg, CVP 4 mmHg, PAOP 8
mmHg, CI 2.0 L/min/m². The nurse recognizes this profile as consistent with:
• A. Cardiogenic shock
• B. Hypovolemic shock
• C. Septic shock (hyperdynamic phase)
• D. Cardiac tamponade
Correct Answer: B Rationale: This profile demonstrates low CVP (normal 2-8, but on lower
end indicating reduced preload), low CI (normal 2.5-4.0), and low-normal PAOP with low
MAP—classic for hypovolemic shock. Cardiogenic shock (Option A) would show elevated CVP
and PAOP with low CI. Septic shock (Option C) typically presents with high or normal CI
(hyperdynamic) and low SVR. Cardiac tamponade (Option D) shows equalization of pressures
(CVP = PAOP = PAD) with pulsus paradoxus. The low filling pressures with low output indicate
volume depletion requiring fluid resuscitation per Surviving Sepsis Campaign guidelines.
Q4: The nurse is caring for a patient with a pulmonary artery catheter. The following pressures
are obtained: RA 12 mmHg, PA 48/28 mmHg (mean 35), PAOP 10 mmHg. These values
indicate:
• A. Left ventricular failure
• B. Pulmonary hypertension
• C. Mitral stenosis
• D. Normal pulmonary pressures
Correct Answer: B Rationale: Elevated PA pressures (normal systolic 15-30, diastolic 8-15,
mean 10-20) with normal PAOP (normal 6-12) indicate pulmonary hypertension—elevated
pressures in the pulmonary circuit without left heart failure. Left ventricular failure (Option A)
would show elevated PAOP (>18 mmHg). Mitral stenosis (Option C) would cause elevated
PAOP due to impaired left atrial emptying. Normal PA systolic is <30 mmHg; this patient's mean
PA pressure of 35 mmHg meets criteria for pulmonary hypertension (mean PA pressure >25
mmHg at rest). The gradient between PAOP and PA mean confirms precapillary pulmonary
hypertension.
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Q5: A patient in sinus bradycardia (HR 38) becomes hypotensive (SBP 78) and confused.
Following ACLS guidelines, the nurse should prepare to administer:
• A. Atropine 0.5 mg IV every 3-5 minutes (maximum 3 mg)
• B. Atropine 1 mg IV push immediately
• C. Epinephrine 1 mg IV every 3-5 minutes
• D. Adenosine 6 mg rapid IV push
Correct Answer: A Rationale: Per 2025 ACLS guidelines for symptomatic bradycardia,
atropine remains first-line at 0.5 mg IV every 3-5 minutes to a maximum of 3 mg. While 1 mg
(Option B) was previously recommended, current dosing emphasizes smaller incremental doses
to avoid paradoxical bradycardia. Epinephrine (Option C) is used if atropine fails or for unstable
patients requiring transcutaneous pacing. Adenosine (Option D) is contraindicated in
bradycardia—it causes transient heart block and is used for SVT. The patient meets criteria for
unstable bradycardia (hypotension, altered mental status), requiring immediate intervention.
Q6: The nurse observes the following rhythm on the monitor: irregularly irregular rhythm, no
discernible P waves, fibrillatory waves present, ventricular rate 142. The patient is
hemodynamically stable. The priority intervention is:
• A. Immediate synchronized cardioversion at 200J
• B. Administration of amiodarone 150 mg IV over 10 minutes
• C. Administration of diltiazem 0.25 mg/kg IV push
• D. Administration of metoprolol 5 mg IV every 5 minutes
Correct Answer: C Rationale: This describes atrial fibrillation with rapid ventricular response
(RVR). For hemodynamically stable patients, rate control is priority. Diltiazem (Option C) is the
preferred agent for rapid rate control in AF with RVR (0.25 mg/kg IV over 2 minutes, then 5-15
mg/hr infusion). Cardioversion (Option A) is indicated only if unstable. Amiodarone (Option B)
is used for rhythm control or if rate control fails, but has slower onset. Metoprolol (Option D) is
an alternative but contraindicated in decompensated heart failure or hypotension. Current AACN
guidelines emphasize diltiazem as first-line for AF with RVR in stable patients without heart
failure.
Q7: A patient with an ICD delivers a shock while the nurse is providing care. The nurse should:
• A. Immediately remove all monitoring leads to prevent further shocks
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• B. Continue care while ensuring no one is touching the patient during shock delivery
• C. Place a magnet over the device to disable it
• D. Call code blue and begin CPR immediately
Correct Answer: B Rationale: ICD shocks are therapeutic interventions for life-threatening
arrhythmias. The nurse should continue monitoring and care, ensuring personal safety by not
touching the patient during shock delivery (clear warning). Removing leads (Option A)
compromises monitoring. Magnet application (Option C) is indicated only for inappropriate
shocks or during procedures with electromagnetic interference, not routine therapeutic shocks.
CPR (Option D) is indicated only if the patient becomes pulseless post-shock. Post-shock
assessment includes verifying rhythm, checking for perfusion, and documenting the event per
AACN guidelines.
Q8: Following acute MI, a patient's cardiac output drops to 3.5 L/min, PCWP rises to 24 mmHg,
and SBP falls to 82 mmHg. The nurse recognizes this as:
• A. Right ventricular infarction
• B. Cardiogenic shock
• C. Papillary muscle rupture
• D. Ventricular septal defect
Correct Answer: B Rationale: This hemodynamic profile—low CO, elevated PCWP (>18
indicates left heart failure), and hypotension—defines cardiogenic shock (systolic BP <90, CI
<2.2, PCWP >15). Right ventricular infarction (Option A) shows elevated RA/CVP with
normal/low PCWP. Papillary muscle rupture (Option C) causes acute severe mitral regurgitation
with new murmur and pulmonary edema. VSD (Option D) shows oxygen saturation step-up
between RA and PA and harsh holosystolic murmur. Cardiogenic shock carries 40-50% mortality
and requires inotropic support, IABP consideration, and emergent revascularization per
ACC/AHA guidelines.
Q9: A patient on a norepinephrine infusion at 15 mcg/min has MAP 58 mmHg. The nurse
should:
• A. Increase norepinephrine to achieve MAP >65 mmHg
• B. Add vasopressin 0.03 units/min as second-line agent
• C. Initiate dobutamine for inotropic support
