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In the case of an elderly patient with chronic renal failure, which class of medications should be avoided due to potential adverse effects?
Non-steroidal anti-inflammatory drugs (NSAIDs)
Calcium channel blockers
ACE inhibitors
Beta blockers
The correct answer is: Non-steroidal anti-inflammatory drugs (NSAIDs)
In the management of an elderly patient with chronic renal failure, the use of non-steroidal anti-inflammatory drugs (NSAIDs) is particularly concerning due to their potential to exacerbate renal function. NSAIDs can inhibit the production of prostaglandins, which are important for maintaining renal blood flow, especially in states of compromised kidney function. This inhibition can lead to decreased glomerular filtration rate (GFR) and contribute to fluid retention, hypertension, and further deterioration of renal function. Additionally, NSAIDs can increase the risk of gastrointestinal bleeding and have other systemic effects that are especially risky in older patients, who may already be taking multiple medications and have various pre-existing health conditions. In contrast, the other classes of medications listed—calcium channel blockers, ACE inhibitors, and beta blockers—can often be used with careful monitoring and may even provide benefits in treating conditions commonly seen in the elderly, such as hypertension and heart failure. Thus, the avoidance of NSAIDs in patients with chronic renal failure is a key consideration in preserving kidney function and minimizing the risk of further complications.