After Accounting for the Compressed Volume Loss on a Stable

question 43

Multiple Choice

After accounting for the compressed volume loss on a stable adult patient receiving volume-controlled continuous mandatory ventilation at a preset volume of 500 ml, you still note a 150-ml difference between the expected and the actual delivered volume. Which of the following is most likely causing this problem?

• A) Gas absorption across the alveolar membrane
• B) Increase in the respiratory quotient
• C) Bronchopleural fistula or pneumothorax
• D) Leak in the patient-ventilator system

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