A client with acute renal failure has a history of cardiovascular disease and is on multiple antihypertensive medications. Which antihypertensive medication class is most likely to contribute to prerenal acute renal failure?

A. Correct. In acute renal failure, when the kidneys are unable to excrete acids properly, metabolic acidosis can occur. Administering bicarbonate intravenously helps raise the pH levels and correct the acid-base imbalance.

B. Incorrect. Encouraging the client to consume more acidic foods would worsen metabolic acidosis and is not a suitable intervention.

C. Incorrect. Increasing fluid intake is not a specific intervention for correcting metabolic acidosis. The focus should be on addressing the underlying acid-base imbalance.

D. Incorrect. Promoting shallow breathing to retain carbon dioxide is not a recommended intervention for correcting metabolic acidosis. Respiratory acidosis and metabolic acidosis are different types of acid-base imbalances with distinct causes and treatments.

A. Correct. Angiotensin-converting enzyme (ACE. inhibitors can contribute to prerenal acute renal failure, especially in clients with preexisting cardiovascular disease. These medications may cause vasodilation and decrease blood flow to the kidneys, leading to impaired kidney function.

B. Incorrect. Beta-blockers are not directly associated with prerenal acute renal failure.

C. Incorrect. Calcium channel blockers are not typically associated with prerenal acute renal failure.

D. Incorrect. Thiazide diuretics may cause electrolyte imbalances and metabolic disturbances, but they are not a common cause of prerenal acute renal failure.

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