MDCAT Chemistry MCQ #247

A patient is given a medication that is metabolized via first-order kinetics. Which parameter does this indicate about the relationship between dosage and plasma concentration?

MDCAT Chemistry MCQ #247

  1. Question 1

    Q1. A patient is given a medication that is metabolized via first-order kinetics. Which parameter does this indicate about the relationship between dosage and plasma concentration?

    • A) A doubling in plasma concentration occurs with a doubling in dosage
    • B) A tripling in plasma concentration occurs with a tripling in dosage
    • C) A quadrupling in plasma concentration occurs with a quadrupling in dosage
    • D) A halving in plasma concentration occurs with a halving in dosage

    Answer: A doubling in plasma concentration occurs with a doubling in dosage

    Explanation: First-order kinetics fails due to dose-independent plasma concentration increase with increasing dosage.