Adverse Drug Reactions and Interactions · USMLE Step 1

When a patient’s renal function declines markedly, what happens to clearance and risk of drug toxicity for renally excreted drugs?

  1. Renal clearance increases, risk decreases
  2. Renal clearance decreases, risk increases
  3. Clearance unaffected, risk unaffected
  4. Clearance increases, risk increases
Show answer and explanation

Correct answer: Renal clearance decreases, risk increases

Reduced renal function lowers drug clearance, leading to accumulation and heightened risk of toxicity when drugs are predominantly renally eliminated.

Difficulty: Medium Question 13 of 19

Practice all 19 Adverse Drug Reactions and Interactions questions

Keep practicing

More Adverse Drug Reactions and Interactions questions