A mechanically ventilated patient has a PaO₂ of 77 mm Hg on 30% oxygen. What is the PaO₂/F_IO₂ (P/F) ratio value for this patient, and is it acceptable or unacceptable for the oxygenation criteria for ventilator weaning?

Question

Quizplus · Accepted Answer

The P/F ratio is calculated by dividing the PaO2 by the FIO2 (expressed as a decimal). Here, 77 mm Hg / 0.30 = 256. A P/F ratio of 256 is generally considered acceptable for ventilator weaning, as it indicates relatively adequate oxygenation.

A Mechanically Ventilated Patient Has a PaO2 of 77 Mm

A Mechanically Ventilated Patient Has a PaO₂ of 77 Mm