I could feel my mind going deeper and deeper into a fog. No matter how hard I tried to focus, I couldn’t seem to make sense of the basic problems that I had been tasked with. What is the sum of 15 plus 4? The question wasn’t hard, but it took all of my brainpower to muster up the answer. 19. Next question … I felt generally OK, but there was pressure behind my eyes, I could feel a slight headache coming on and my vision didn’t seem quite right. With the exception of the sheet of paper in front of me, the remainder of the room had faded away. It was time to don the oxygen mask before hypoxia did a number on me.
Hypoxia: Knowledge and Prevention
Key Takeaways:
- Hypoxia, an oxygen deficiency, severely impairs cognitive and physical functions, posing a significant, often fatal, risk to pilots at high altitudes due to its variable and difficult-to-detect symptoms.
- Pilots should proactively use supplemental oxygen, even at altitudes below legal requirements, as individual tolerance varies and mild hypoxia can degrade performance.
- Preventative measures include utilizing personal experience in controlled environments like altitude chambers and employing cockpit equipment such as pulse oximeters and carbon monoxide detectors.
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