Introduction Hypoxic challenge test consisting of breathing 15% FiO2 for 20 min with blood gas measurements is recommended by BTS guidelines for the assessment of the requirement for in-flight oxygen.

Background: A major contributor to unfavorable outcome after traumatic brain injury (TBI) is secondary brain injury. Low brain tissue oxygen tension (PbtO2) has shown to be an independent predictor of ...

Calculating the partial pressure of oxygen in arterial blood (PaO2) is an essential skill for medical professionals, especially in assessing a patient’s respiratory health. This article will provide a ...