DVM (Doctor Of Veterinary Medicine) Exam

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During the anesthesia of an intubated dog, the end-tidal CO2 (ETCO2) reading on the capnograph abruptly drops from a stable 40 mmHg to near 0 mmHg. The waveform is completely lost. Which of the following is the most likely cause?

Severe hypotension Malignant hyperthermia Exhausted CO2 absorbent Disconnection of the breathing circuit

Correct Answer:

Disconnection of the breathing circuit

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