A nurse is obtaining a medication history from a client who has hypertension. Which of the following questions should the nurse ask to assess for adherence to the prescribed therapy?

B) Correct. The nurse should monitor serum potassium closely while the client is taking furosemide, as this medication is a loop diuretic that can cause hypokalemia or low potassium levels, which can lead to cardiac arrhythmias or muscle weakness.

A) Incorrect. Although serum creatinine is an indicator of kidney function, it is not directly affected by furosemide, as this medication does not cause nephrotoxicity or damage to the kidneys.

C) Incorrect. Although serum calcium is an electrolyte that can affect neuromuscular function, it is not directly affected by furosemide, as this medication does not cause hypocalcemia or low calcium levels.

D) Incorrect. Although serum albumin is a protein that can affect fluid balance, it is not directly affected by furosemide, as this medication does not cause hypoalbuminemia or low albumin levels.

B) Correct. The client should check with their doctor before taking any herbal supplements or remedies, as some of them may interact with warfarin and increase the risk of bleeding or clotting.

A) Incorrect. The client should not avoid eating foods that are high in vitamin K, but rather maintain a consistent intake of them, as vitamin K is an antidote for warfarin and can affect its therapeutic effect.

C) Incorrect. This statement is relevant for preventing bleeding complications while taking warfarin, but it does not indicate an understanding of potential drug interactions.

D) Incorrect. This statement is relevant for monitoring the effects of warfarin on cardiovascular function, but it does not indicate an understanding of potential drug interactions.