Question:
The anaesthetic gas with maximum respiratory irritation is:
The anaesthetic gas with maximum respiratory irritation is:
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Sevoflurane is used for gas induction because it is non-pungent; the opposite extreme is your answer.
Updated On: Jun 23, 2026
- Halothane
- Enflurane
- Desflurane
- Sevoflurane
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The Correct Option is C
Solution and Explanation
Step 1: Airway irritation from a volatile agent depends on its pungency. A pungent, less soluble agent provokes airway reflexes during inhalational induction.
Step 2: Desflurane is the most pungent of the volatile agents. When used for inhalational induction it causes airway irritation - breath holding, coughing, laryngospasm and secretions (isoflurane is similarly irritant).
Step 3: Sevoflurane is non-pungent and is the agent of choice for inhalational (gas) induction; halothane is also relatively sweet smelling and non-irritant.
Step 4: Therefore desflurane, with maximum respiratory irritation, is the correct answer.
Step 2: Desflurane is the most pungent of the volatile agents. When used for inhalational induction it causes airway irritation - breath holding, coughing, laryngospasm and secretions (isoflurane is similarly irritant).
Step 3: Sevoflurane is non-pungent and is the agent of choice for inhalational (gas) induction; halothane is also relatively sweet smelling and non-irritant.
Step 4: Therefore desflurane, with maximum respiratory irritation, is the correct answer.
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