Question -
Answer -
Hypoxia refers to shortage of oxygen supply to the body. It is of different types:
1. Anaemic hypoxia (deficiency of haemoglobin),
2. Cytotoxic hypoxia (impaired utilization as in cyanide poisoning)
3. Stagnant hypoxia. Due to heart failure or reduced pumping activity of heart.
4. Hypoxic hypoxia. Insufficient oxygen in air as at high altitude.
5. CO Poisoning. Carbon monoxide binds to haemoglobin irreversibly. Oxygen transport is correspondingly reduced.