Question # 46

A patient with severe COPD on the vent shows EtCO₂ 32 mmHg but PaCO₂ 52 mmHg on an ABG drawn minutes later. What is the MOST likely explanation?

Options:

A.

Capnograph malfunction

B.

Increased anatomic dead space from ETT

C.

Increased alveolar dead space causing V/Q mismatch

D.

Sampling error on ABG

Viewing question 46 out of 69 questions
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