ATI RN
Cardiovascular System Exam Questions
1. The client on amiodarone reports shortness of breath. What is the nurse’s best response?
- A. Notify the healthcare provider immediately.
- B. Reassure the client that this is a common side effect.
- C. Instruct the client to monitor their symptoms at home.
- D. Suggest the client reduce physical activity.
Correct answer: A
Rationale: When a client on amiodarone reports shortness of breath, it can be indicative of pulmonary toxicity, a severe side effect associated with this medication. The nurse's priority is to notify the healthcare provider immediately to assess the situation and determine the appropriate course of action. Choice B is incorrect because shortness of breath with amiodarone should not be dismissed as a common side effect. Instructing the client to monitor symptoms at home (Choice C) may delay necessary intervention. Suggesting the client reduce physical activity (Choice D) does not address the potential serious nature of the symptom and the need for prompt evaluation.
2. What is a condition where the heart beats too slowly, reducing the amount of blood pumped to the body?
- A. Bradycardia
- B. Tachycardia
- C. Atrial fibrillation
- D. Ventricular fibrillation
Correct answer: A
Rationale: Bradycardia is the correct answer. It is a condition characterized by a slow heart rate, which reduces the amount of blood pumped to the body. This can lead to symptoms like fatigue and dizziness. Choice B, Tachycardia, is the opposite condition where the heart beats too fast. Choices C and D, Atrial fibrillation and Ventricular fibrillation, refer to irregular and potentially life-threatening rapid heart rhythms involving the atria and ventricles respectively, not a slow heart rate.
3. What condition involves the heart's electrical system malfunctioning, causing very fast heartbeats originating from the ventricles?
- A. Ventricular tachycardia
- B. Atrial fibrillation
- C. Supraventricular tachycardia
- D. Bradycardia
Correct answer: A
Rationale: Ventricular tachycardia is the correct answer. It is a condition characterized by the heart's electrical system malfunctioning, leading to very fast heartbeats originating from the ventricles. Ventricular tachycardia can be life-threatening as it may progress to ventricular fibrillation, causing cardiac arrest. Atrial fibrillation (choice B) involves rapid, irregular beating of the atria, not the ventricles. Supraventricular tachycardia (choice C) originates above the ventricles and does not involve ventricular malfunction. Bradycardia (choice D) is the opposite of tachycardia, characterized by an abnormally slow heart rate.
4. The client is on a calcium channel blocker. What is the expected effect on the heart?
- A. Increased heart rate
- B. Decreased heart rate
- C. Increased blood pressure
- D. Decreased blood pressure
Correct answer: D
Rationale: When a client is on a calcium channel blocker, the expected effect on the heart is a decreased heart rate and decreased blood pressure. Calcium channel blockers work by dilating blood vessels and reducing the heart's workload, resulting in decreased blood pressure. Choice A, increased heart rate, is incorrect as calcium channel blockers actually have a negative chronotropic effect, reducing the heart rate. Choice C, increased blood pressure, is also incorrect because these medications are used to lower blood pressure.
5. What is a condition where the heart is unable to relax properly between beats, reducing its ability to fill with blood?
- A. Diastolic heart failure
- B. Systolic heart failure
- C. Hypertrophic cardiomyopathy
- D. Restrictive cardiomyopathy
Correct answer: A
Rationale: The correct answer is A: Diastolic heart failure. In diastolic heart failure, the heart is unable to relax properly between beats, leading to a reduced ability to fill with blood. This condition primarily affects the heart's filling function rather than its pumping function, which is characteristic of systolic heart failure (choice B). Hypertrophic cardiomyopathy (choice C) involves the abnormal thickening of the heart muscle, while restrictive cardiomyopathy (choice D) is characterized by the heart muscle becoming stiff and less compliant. Therefore, choices B, C, and D are incorrect in the context of a heart condition where relaxation between beats is impaired.
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