DLT Failure to Collapse — FRCA Final MCQ

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HardAirway ManagementDLT Failure to CollapseFRCA Final

Left DLT for right thoracotomy. FOB confirms correct position but right lung won't collapse when tracheal lumen clamped. Most likely problem?

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Correct answer: E — Bronchial cuff not inflated

DLT confirmed in left bronchus but right lung won't collapse: bronchial cuff not inflated (or has leak). Without seal, gas passes around tube from tracheal to bronchial side. Inflate with minimum volume to abolish leak.

Reference: RCOA – 2023 – OLV and DLT management