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. Which heart chamber receives venous blood returning to the heart via the superior and inferior vena cava?
- A. Right atrium
- B. Left atrium
- C. Right ventricle
- D. Left ventricle
Correct answer: A
Rationale: The correct answer is A: Right atrium. The right atrium is the heart chamber that receives deoxygenated blood returning from the body via the superior and inferior vena cava. The blood enters the right atrium from the vena cava and then passes through the tricuspid valve into the right ventricle. Choices B, C, and D are incorrect because the left atrium receives oxygenated blood from the lungs, the right ventricle pumps blood to the lungs for oxygenation, and the left ventricle pumps oxygenated blood to the body.
3. The client on warfarin has an INR of 1.2. What is the nurse’s priority action?
- A. Increase the dose of warfarin
- B. Administer vitamin K
- C. Monitor for signs of bleeding
- D. Hold the next dose and notify the healthcare provider
Correct answer: A
Rationale: The correct answer is to increase the dose of warfarin. An INR of 1.2 is below the therapeutic range for a client on warfarin, indicating that the dose is subtherapeutic. The priority action in this situation is to adjust the dose to achieve the target therapeutic INR range (usually 2-3) to prevent thromboembolic events. Administering vitamin K is not necessary as the INR is low, and there are no signs of bleeding. Monitoring for signs of bleeding is important but not the priority in this case since the INR is subtherapeutic. Holding the next dose and notifying the healthcare provider would delay the intervention needed to adjust the dose and achieve the therapeutic range.
4. Which test measures the electrical activity of the heart and can detect arrhythmias and other heart conditions?
- A. Electrocardiogram (ECG or EKG)
- B. Chest X-ray
- C. MRI
- D. CT scan
Correct answer: A
Rationale: The correct answer is A: Electrocardiogram (ECG or EKG). An electrocardiogram is a test that measures the electrical activity of the heart and can detect arrhythmias and other heart conditions by recording the heart's electrical impulses. Choices B, C, and D are incorrect because a chest X-ray is used to visualize the structures in the chest, an MRI (Magnetic Resonance Imaging) is used to provide detailed images of organs and tissues, and a CT scan (Computed Tomography) is a type of imaging that uses X-rays to create detailed cross-sectional images of the body.
5. Which condition is characterized by chronic inflammation of the airways resulting in excess mucus production, leading to frequent coughing and breathing difficulties?
- A. Chronic bronchitis
- B. Asthma
- C. Pneumonia
- D. COPD
Correct answer: A
Rationale: The correct answer is A, Chronic bronchitis. Chronic bronchitis involves long-term inflammation of the bronchi, leading to excessive mucus production, frequent coughing, and breathing difficulties. Asthma (B) is characterized by reversible airway obstruction and bronchospasms. Pneumonia (C) is an infection of the lungs caused by bacteria, viruses, or fungi. COPD (D) is a term used to describe chronic lung diseases that cause airflow blockage and breathing-related problems.
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