General Anesthetics · Pharmacology

Etomidate is often used for the induction of anesthesia in patients with cardiovascular instability, but it is known to inhibit which process?

  1. Renal filtration
  2. Adrenal cortisol synthesis
  3. Hepatic glycogenolysis
  4. Thyroid hormone synthesis and release
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Correct answer: Adrenal cortisol synthesis

Etomidate inhibits the enzyme 11-beta-hydroxylase, which is essential for the synthesis of cortisol and aldosterone. Even a single induction dose can cause transient adrenal suppression, which may be problematic in septic or critically ill patients.

Difficulty: Medium Question 10 of 20

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