Probenecid requires which renal condition to be effective in increasing uric acid excretion?

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Multiple Choice

Probenecid requires which renal condition to be effective in increasing uric acid excretion?

Probenecid works by blocking the proximal tubular reabsorption of uric acid, increasing its excretion in the urine. For this effect to translate into more uric acid being eliminated, the kidneys must be able to filter uric acid and produce urine—i.e., there must be adequate creatinine clearance. If renal function is reduced, there is less uric acid filtered and less urine flow, so the drug cannot enhance excretion effectively. In states of chronic kidney disease, renal hypoperfusion, or very low urine flow, probenecid is less effective or contraindicated because the necessary renal excretion pathway is compromised.

Probenecid works by blocking the proximal tubular reabsorption of uric acid, increasing its excretion in the urine. For this effect to translate into more uric acid being eliminated, the kidneys must be able to filter uric acid and produce urine—i.e., there must be adequate creatinine clearance. If renal function is reduced, there is less uric acid filtered and less urine flow, so the drug cannot enhance excretion effectively. In states of chronic kidney disease, renal hypoperfusion, or very low urine flow, probenecid is less effective or contraindicated because the necessary renal excretion pathway is compromised.

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