Correct Answer: B

Rationale: Removing the nitroglycerin patch at night is essential to prevent the development of tolerance. Tolerance can occur when the body gets used to a constant level of the medication, reducing its effectiveness. By removing the patch at night, the client has a drug-free period, which helps prevent tolerance and maintains the effectiveness of the nitroglycerin for angina relief.

Correct Answer: A

Rationale: Muscle pain is a common side effect of statins like simvastatin and can indicate a serious condition called rhabdomyolysis. Rhabdomyolysis is a severe condition where muscle fibers break down rapidly, releasing myoglobin into the bloodstream, which can lead to kidney damage. Therefore, it's important for the nurse to educate the client about this potential side effect and to promptly report any muscle pain to the healthcare provider.

Correct Answer: A

Rationale: Nitroglycerin tablets are light and moisture-sensitive, so they should be stored in a cool, dry place away from light to maintain their effectiveness. Option B advises taking a tablet every 5 minutes, which may lead to overdose. Option C emphasizes the correct administration route for sublingual tablets. Option D is incorrect as water is not needed for the tablets to take effect.

Correct Answer: B

Rationale: Removing the nitroglycerin patch at night is essential to prevent the development of tolerance. Tolerance can occur when the body gets used to a constant level of the medication, reducing its effectiveness. By removing the patch at night, the client has a drug-free period, which helps prevent tolerance and maintains the effectiveness of the nitroglycerin for angina relief.

Correct Answer: B

Rationale: The correct instruction for the nurse to reinforce with the client is to increase potassium intake by eating bananas and oranges. Furosemide can lead to potassium loss, potentially causing hypokalemia. By increasing potassium intake through diet, the client can help prevent this electrolyte imbalance and maintain overall health.