Example: A patient has a pO2of 85mmHg on ABG while receiving 5 liters/minute of oxygen. 5 L/min = 40% oxygen = FIO2of 0.40. The P/F ratio = 85 divided by 0.40 = 212.5. How to Calculate SpO2 to PaO2 (when no ABG available) When the PaO2is unknown because an ABG is not avai...
.MeanPaO2/FiO2ratioincreasedfrom125(±43)to300(±103;P<0.0001)afterMRSandwassustainedabove300throughoutsevendays.Non-aeratedparenchymadecreasedsignificantlyfrom53.6%(interquartilerange(IQR):42.5to62.4)to12.7%(IQR:4.9to24.2)(P<0.0001)afterMRS.Thepotentiallyrecruitablelungwasestimatedat45%(IQR:25to53).We...