Answer :
Final answer:
To determine the expected PO₂ for the calibrating gas, you need to know the partial pressure of oxygen in the alveoli and the Respiratory Quotient (RQ). The alveolar PO₂ can be calculated using the formula: alveolar PO₂ = inspired PO₂ - (RQ x PCO₂).
Explanation:
In order to determine the expected PO₂ for the calibrating gas, you need to know the partial pressure of oxygen in the alveoli and the Respiratory Quotient (RQ).
The alveolar PO₂ can be calculated using the formula: alveolar PO₂ = inspired PO₂ - (RQ x PCO₂).
For example, if the RQ is 0.8 and the PCO₂ in the alveoli is 40 mm Hg, the alveolar PO₂ would be 40 mm Hg x 0.8 = 32 mm Hg.
