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Anaesthesia · Intravenous agents: etomidate
Sample itemWhich adverse effect of a single dose of etomidate is of concern in septic shock?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
A. Adrenocortical suppression via 11-beta-hydroxylase inhibition
Etomidate inhibits the enzyme 11-beta-hydroxylase and temporarily lowers cortisol synthesis. It is otherwise valued for its haemodynamic stability.
Option by option
A. Adrenocortical suppression via 11-beta-hydroxylase inhibition (correct)
Correct. It suppresses cortisol synthesis.
B. Prolonged apnoea
Apnoea is brief and less than with propofol.
C. Histamine release
Histamine release is not typical for etomidate.
D. Severe hypotension
Etomidate is notable for cardiovascular stability.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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