---
COMSAE Phase 3 Form 112 Practice
Exam Questions And Correct
Answers (Verified Answers) Plus
Rationales 2025|2026 Q&A
**1. A nurse is teaching a group of middle-aged men about stroke
prevention. Which statement by a client requires further teaching?**
A. "I will start an exercise program to lose weight."
B. "I have to stop my daily trip to the donut shop for breakfast."
C. "I will decrease my consumption of beer to only one per day."
D. "I will continue smoking but decrease the number of cigarettes."
**Correct Answer:** D. "I will continue smoking but decrease the
number of cigarettes."
**Rationale:** Smoking cessation is critical for lowering the risk of
stroke. Simply decreasing the number of cigarettes does not eliminate
the significant risk posed by tobacco use. The other options all
represent positive lifestyle changes that reduce stroke risk (weight loss,
dietary improvement, and moderating alcohol intake) .
,---
**2. A patient with ventricular fibrillation is receiving amiodarone.
What is the primary mechanism of action of this medication?**
A. Sodium channel blocker
B. Beta-adrenergic blocker
C. Potassium channel blocker (Class III antiarrhythmic)
D. Calcium channel blocker
**Correct Answer:** C. Potassium channel blocker (Class III
antiarrhythmic)
**Rationale:** Amiodarone is a Class III antiarrhythmic agent. Its
primary mechanism is blocking potassium channels in cardiac muscle,
which prolongs repolarization and the refractory period, helping to
stabilize the cardiac membrane and terminate life-threatening
arrhythmias like ventricular fibrillation .
---
**3. The nurse cares for a client 12 hours following a thoracotomy who
has a chest tube connected to a drainage system. The nurse notices
that fluid is not draining through the chest tube, but the tubing is not
kinked or occluded. What is an appropriate action by the nurse?**
, A. Strip the chest tube.
B. Notify the Rapid Response Team.
C. Continue to monitor.
D. Assess for bubbling in the water-seal chamber.
**Correct Answer:** B. Notify the Rapid Response Team.
**Rationale:** In the first 24 hours after a thoracotomy, chest tube
drainage is expected. A sudden cessation of drainage without a kink or
occlusion can indicate a blockage, which could lead to a tension
pneumothorax. The healthcare provider or Rapid Response Team
should be notified immediately for further assessment. Stripping the
chest tube is avoided due to the risk of damaging lung tissue .
---
**4. A patient with hypertension and a history of myocardial infarction
is prescribed atenolol. What is the primary therapeutic effect of this
medication?**
A. Vasodilation and decreased preload
B. Decreased heart rate and blood pressure (beta-blocker)
C. Increased cardiac output
D. Diuresis and fluid elimination
COMSAE Phase 3 Form 112 Practice
Exam Questions And Correct
Answers (Verified Answers) Plus
Rationales 2025|2026 Q&A
**1. A nurse is teaching a group of middle-aged men about stroke
prevention. Which statement by a client requires further teaching?**
A. "I will start an exercise program to lose weight."
B. "I have to stop my daily trip to the donut shop for breakfast."
C. "I will decrease my consumption of beer to only one per day."
D. "I will continue smoking but decrease the number of cigarettes."
**Correct Answer:** D. "I will continue smoking but decrease the
number of cigarettes."
**Rationale:** Smoking cessation is critical for lowering the risk of
stroke. Simply decreasing the number of cigarettes does not eliminate
the significant risk posed by tobacco use. The other options all
represent positive lifestyle changes that reduce stroke risk (weight loss,
dietary improvement, and moderating alcohol intake) .
,---
**2. A patient with ventricular fibrillation is receiving amiodarone.
What is the primary mechanism of action of this medication?**
A. Sodium channel blocker
B. Beta-adrenergic blocker
C. Potassium channel blocker (Class III antiarrhythmic)
D. Calcium channel blocker
**Correct Answer:** C. Potassium channel blocker (Class III
antiarrhythmic)
**Rationale:** Amiodarone is a Class III antiarrhythmic agent. Its
primary mechanism is blocking potassium channels in cardiac muscle,
which prolongs repolarization and the refractory period, helping to
stabilize the cardiac membrane and terminate life-threatening
arrhythmias like ventricular fibrillation .
---
**3. The nurse cares for a client 12 hours following a thoracotomy who
has a chest tube connected to a drainage system. The nurse notices
that fluid is not draining through the chest tube, but the tubing is not
kinked or occluded. What is an appropriate action by the nurse?**
, A. Strip the chest tube.
B. Notify the Rapid Response Team.
C. Continue to monitor.
D. Assess for bubbling in the water-seal chamber.
**Correct Answer:** B. Notify the Rapid Response Team.
**Rationale:** In the first 24 hours after a thoracotomy, chest tube
drainage is expected. A sudden cessation of drainage without a kink or
occlusion can indicate a blockage, which could lead to a tension
pneumothorax. The healthcare provider or Rapid Response Team
should be notified immediately for further assessment. Stripping the
chest tube is avoided due to the risk of damaging lung tissue .
---
**4. A patient with hypertension and a history of myocardial infarction
is prescribed atenolol. What is the primary therapeutic effect of this
medication?**
A. Vasodilation and decreased preload
B. Decreased heart rate and blood pressure (beta-blocker)
C. Increased cardiac output
D. Diuresis and fluid elimination
