Hypoxia

Question 1

What are the four types of hypoxia?

Answer 1

Hypoxic, hypemic, histotoxic & stagnant.

Question 2

What is hypoxia?

Answer 2

Hypoxia results when the body lacks oxygen.
• Drugs = Never self-medicate
• Alcohol = 1 oz. = 2000’ physiological alt.
• Smoke = 3 cigs rapidly or 20-30 in 24 hrs. =
4000’ at sea level and 20% night vision ↓

Question 3

What is hypoxic hypoxia?

Answer 3

Not enough O2 in air (Altitude)
1. Stages of Hypoxic Hypoxia (ICDC)
• Indifferent (0’ – 10,000’)
• Compensatory = (10,000’ – 15,000’)
• Disturbance = (15,000’ – 20,000’)
• Critical = (20,000’ +)

Question 4

What is hypemic hypoxia?

Answer 4

Reduction in O2 carrying
capacity of the blood. Blood Loss, Carbon
Monoxide (CO), Anemia

Question 5

What is histotoxic hypoxia?

Answer 5

Tissue cannot absorb O2 due
to poisoning (cyanide) / drugs / alcohol

Question 6

What is stagnant hypoxia?

Answer 6

Inadequate circulation of the
blood. Heart Failure, High G’s