Correct Answer: A

Rationale: A beta blocker would likely be prescribed for an older adult client diagnosed with cardiomyopathy and a cardiac dysrhythmia. Beta blockers are commonly used to manage dysrhythmias by slowing down the heart rate, reducing the workload of the heart, and improving its efficiency. They can also help in preventing arrhythmias and improving overall cardiac function in individuals with cardiomyopathy. Additionally, beta blockers have been shown to reduce mortality and improve symptoms in patients with various cardiac conditions. Therefore, it is a suitable medication choice for this client's condition.

Correct Answer: A

Rationale: A. Muscle spasms: Nitroprusside infusion can lead to cyanide toxicity, which can cause muscle spasms as a symptom. It is essential for the nurse to monitor the client for any signs of muscle spasms during the infusion.

Correct Answer: C

Rationale: Based on the blood pressure categories defined by the American Heart Association, hypertension is classified as having a systolic blood pressure (top number) of 130 mm Hg or higher and/or a diastolic blood pressure (bottom number) of 80 mm Hg or higher. The client's blood pressure reading of 150/90 mm Hg falls within the range of hypertension, indicating elevated blood pressure levels that may require monitoring and/or intervention to reduce the risk of cardiovascular complications.

Correct Answer: C

Rationale: The statement "If I take my medications as prescribed, I'll feel better" best illustrates compliance with the medication plan. This statement shows an understanding of the importance of following the prescribed medication regimen and the potential positive outcomes of adherence to the plan. It demonstrates the client's willingness to adhere to the instructions given by the nurse, which is essential for successful medication management and treatment outcomes.

Correct Answer: B

Rationale: While it is important for individuals with cardiomyopathy to maintain a well-balanced diet that includes adequate protein, stating that increasing dietary protein specifically helps with cardiac cell repair may not be entirely accurate. The primary focus for individuals with cardiomyopathy should be on overall heart-healthy choices such as monitoring sodium intake, avoiding high-fat, high-cholesterol foods, and following a well-rounded diet plan. Protein can be a part of this plan but it should not be emphasized as the main component for cardiac cell repair. Consulting with a dietitian who can provide personalized guidance and recommendations based on the individual's specific condition is crucial.