Physiology of Anaesthesia

Question 1

What effect does anaesthesia have on the cardiovascular system?

Answer 1

Reduction in cardiac output causing blood flow reduction to central and peripheral organs - may produce inadequate oxygenation of the tissues.

Changes in the tone of blood vessels.

Question 2

What effect does anaesthesia have on the respiratory system?

Answer 2

Reduced sensitivity to CO2 concentration and reduced respiratory drive.
Can result in:
- Hypercapnia
- Hypoxia