Pharmacology If a drug is excreted in urine at the rate of 10 mg/hr at a steady-state plasma concentration of 5 mg/L, then its renal clearance is: A 0.5 L/hr B 2.0 L/hr C 5.0 L/hr D 20 L/hr 💡 Explanation If a drug is excreted in urine at the rate of 10 mg/hr at a steady-state plasma concentration of 5 mg/L, then its renal clearance is: ✓ Correct Answer: B. 2.0 L/hr