Which inhalational agent is preferred for maintenance of anaesthesia in remote locations where a scavenging system may be unavailable?
- A Isoflurane
- B Sevoflurane ✓
- C Halothane
- D Nitrous oxide combined with isoflurane
Correct answer: B. Sevoflurane
Explanation
Sevoflurane has low blood-gas solubility giving rapid induction and emergence, minimal airway irritation, good haemodynamic stability, and low tissue solubility, making it ideal where recovery facilities are limited. Nitrous oxide accumulates in closed spaces such as bowel and pneumothorax and adds pollution concerns without scavenging. Halothane is obsolete due to hepatotoxicity, and isoflurane's pungency limits induction use.
Reference: Morgan and Mikhail's Clinical Anesthesiology, 7th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
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