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Sheppard Air General Practice Exam

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During anesthesia, capnography reveals a sudden decrease in end-tidal CO₂ from 38 mmHg to 12 mmHg. What should the veterinary technologist suspect first?
Correct Answer:
Endotracheal tube disconnection
Explanation:
A sudden dramatic decrease in ETCO₂ commonly indicates circuit disconnection, accidental extubation, or equipment failure. Prompt assessment of the breathing circuit and patient should occur immediately because ventilation may be compromised.

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