Hypoxia

Question 1

Define hypoxia.

Answer 1

Hypoxia is a condition where there is inadequate oxygen supply to the tissues.

Question 2

Classify hypoxia.

Answer 2

Hypoxia is classified into: Hypoxic

Question 3

What is hypoxic hypoxia?

Answer 3

Hypoxic hypoxia occurs due to low arterial PO₂

Question 4

What is anemic hypoxia?

Answer 4

Anemic hypoxia is due to decreased oxygen-carrying capacity of the blood

Question 5

What is stagnant hypoxia?

Answer 5

Stagnant (circulatory) hypoxia is due to impaired or slow blood flow

Question 6

What is histotoxic hypoxia?

Answer 6

Histotoxic hypoxia occurs when cells are unable to utilize oxygen

Question 7

List the effects of hypoxia on the body.

Answer 7

Increased ventilation

Question 8

Name the methods of oxygen therapy.

Answer 8

Nasal cannula

Question 9

What is the physiological basis of oxygen therapy in hypoxic hypoxia?

Answer 9

Oxygen therapy increases inspired PO₂ and improves arterial oxygenation.

Question 10

What is the physiological basis of oxygen therapy in anemic hypoxia?

Answer 10

Treat the underlying anemia and possibly transfuse; oxygen therapy alone is less effective.

Question 11

What is the physiological basis of oxygen therapy in stagnant hypoxia?

Answer 11

Improve circulation with medications or mechanical support; oxygen therapy may help but not sufficient alone.

Question 12

What is the physiological basis of oxygen therapy in histotoxic hypoxia?

Answer 12

Administer antidotes (e.g.

Question 13

List the complications of chronic oxygen therapy.

Answer 13

Oxygen toxicity