Correct Answer: C

Rationale: For an older patient with heart failure prescribed digoxin (Lanoxin) 125 mcg by mouth three times a week, the nurse should administer the drug as prescribed while monitoring for manifestations of toxicity. Digoxin is a medication commonly used in heart failure, but it has a narrow therapeutic index, meaning that the difference between a therapeutic dose and a toxic dose is small. Older patients are more susceptible to digoxin toxicity due to age-related changes in pharmacokinetics and pharmacodynamics, as well as potential comorbidities. Therefore, close monitoring for signs and symptoms of digoxin toxicity, such as nausea, vomiting, visual disturbances, and cardiac arrhythmias, is essential. It is important for the nurse to be vigilant for any early signs of toxicity and communicate any concerns to the healthcare provider promptly.

Correct Answer: B

Rationale: Atorvastatin (Lipitor) is a medication commonly used to treat high cholesterol levels. One of the serious side effects associated with atorvastatin use is muscle pain and weakness. This could be a sign of a rare but serious condition known as rhabdomyolysis, which is the breakdown of muscle tissue that can lead to kidney damage. Therefore, it is crucial for the client to report any muscle pain or weakness promptly to their healthcare provider to prevent any serious complications. Headaches and nausea are common side effects that may not require urgent attention. Bruising and excessive bleeding usually indicate a different issue, such as a bleeding disorder or anticoagulant medication effect. Shortness of breath and coughing are not typically associated with atorvastatin use and may suggest other health problems that require evaluation by a healthcare provider.

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: C

Rationale: For an older patient with heart failure prescribed digoxin (Lanoxin) 125 mcg by mouth three times a week, the nurse should administer the drug as prescribed while monitoring for manifestations of toxicity. Digoxin is a medication commonly used in heart failure, but it has a narrow therapeutic index, meaning that the difference between a therapeutic dose and a toxic dose is small. Older patients are more susceptible to digoxin toxicity due to age-related changes in pharmacokinetics and pharmacodynamics, as well as potential comorbidities. Therefore, close monitoring for signs and symptoms of digoxin toxicity, such as nausea, vomiting, visual disturbances, and cardiac arrhythmias, is essential. It is important for the nurse to be vigilant for any early signs of toxicity and communicate any concerns to the healthcare provider promptly.

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.