Question:
A patient was administered a muscle relaxant and subsequently developed erythema, facial flushing, and hypotension. Which drug is most likely responsible for these symptoms?
A patient was administered a muscle relaxant and subsequently developed erythema, facial flushing, and hypotension. Which drug is most likely responsible for these symptoms?
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Atracurium can cause histamine release, leading to flushing, erythema and hypotension.
Updated On: May 14, 2026
- Cisatracurium
- Atracurium
- Rocuronium
- Vecuronium
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The Correct Option is B
Solution and Explanation
Concept:
Atracurium can cause histamine release. Histamine release may produce erythema, flushing, hypotension and bronchospasm.
Step 1: Identify symptoms.
The symptoms are: \[ \text{Erythema + facial flushing + hypotension} \] These suggest histamine release.
Step 2: Recall muscle relaxant causing histamine release.
Atracurium is known to cause histamine release more than cisatracurium.
Step 3: Choose the correct drug.
Therefore, the responsible drug is: \[ \text{Atracurium} \]
Step 1: Identify symptoms.
The symptoms are: \[ \text{Erythema + facial flushing + hypotension} \] These suggest histamine release.
Step 2: Recall muscle relaxant causing histamine release.
Atracurium is known to cause histamine release more than cisatracurium.
Step 3: Choose the correct drug.
Therefore, the responsible drug is: \[ \text{Atracurium} \]
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