Most students mix up the 4 types of hypoxia, not because it’s difficult, but because it’s never been explained properly. Hypoxia isn’t just “lack of oxygen.” It’s why your body isn’t getting or using the oxygen that matters. And in your pilot exams, you’ll be asked to differentiate between scenarios. That’s where most students lose marks. Here’s how we teach it: • Hypoxic hypoxia happens when there isn’t enough oxygen in the lungs, usually due to altitude (reduced pressure in the alveoli). • Ana

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