the nurse is caring for a client on amiodarone what adverse effect is the nurse most concerned about
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Cardiovascular System Exam Questions Pdf

1. The nurse is caring for a client on amiodarone. What adverse effect is the nurse most concerned about?

Correct answer: A

Rationale: The correct answer is A, Pulmonary toxicity. Amiodarone is known to cause pulmonary toxicity, which can be serious and even fatal in some cases. This adverse effect includes interstitial pneumonitis, pulmonary fibrosis, and acute respiratory distress syndrome. Monitoring for symptoms such as cough, dyspnea, and fever is crucial. Choices B, Liver toxicity, C, Thyroid dysfunction, and D, Renal dysfunction, are incorrect because while amiodarone can also affect the liver, thyroid, and kidneys, the most concerning adverse effect that requires immediate attention and monitoring is pulmonary toxicity.

2. Which structure serves as the major chemoreceptor of the heart?

Correct answer: A

Rationale: The correct answer is A, the carotid body. The carotid body is the major chemoreceptor of the heart responsible for detecting changes in blood oxygen, carbon dioxide, and pH levels. This specialized structure helps regulate the cardiovascular system's response to maintain appropriate oxygen levels in the blood. Choices B, C, and D are incorrect as they are not directly involved in chemoreception in the heart. The aortic body is primarily involved in blood pressure regulation, the vagus nerve is a cranial nerve responsible for parasympathetic innervation, and the SA node is known as the heart's natural pacemaker.

3. When administering enoxaparin (Lovenox) to a client for DVT prophylaxis, what is the most important lab value to monitor?

Correct answer: A

Rationale: The correct answer is A: Platelet count. When administering enoxaparin (Lovenox) for DVT prophylaxis, it is crucial to monitor the platelet count as enoxaparin can lead to thrombocytopenia, a decrease in platelet levels. Monitoring the platelet count helps in early detection of this potential adverse effect. Choices B, C, and D are incorrect because PT/INR, aPTT, and hemoglobin levels are not the most important lab values to monitor specifically for enoxaparin administration and DVT prophylaxis.

4. What is the average cardiac output?

Correct answer: B

Rationale: The correct answer is B: Approximately 4 to 8 L per minute. Cardiac output is defined as the volume of blood the heart pumps per minute, typically ranging between 4 to 8 liters. Choices A, C, and D provide ranges that are either too narrow or outside the standard average values for cardiac output, making them incorrect.

5. What condition involves a weakened and bulging aorta, the main artery in the body, potentially leading to rupture?

Correct answer: A

Rationale: An aortic aneurysm is a condition characterized by the weakening and bulging of the aorta, the body's main artery. If left untreated, this bulging may lead to a rupture, causing severe complications. Arterial stenosis refers to the narrowing of an artery, not the weakening and bulging seen in an aortic aneurysm. Pulmonary embolism involves a blockage in the pulmonary artery, which is different from the weakening and bulging in an aortic aneurysm. Deep vein thrombosis is the formation of a blood clot in a deep vein, not related to the condition described in the question.

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