Question

What is the ratio of the gases in medical air?

(a) 78% Nitrogen, 21 % oxygen

(b) 75 % Oxygen, 25 % Carbon dioxide

(c) 60% Nitrogen, 20% Oxygen, 20% Carbon Di oxide

(d) 50% Nitrogen, 50% Oxygen

I had been asked this question in final exam.

Query is from Organization of Theaters topic in chapter Anaesthesia of Clinical Science

Answer 1

Right answer is (a) 78% Nitrogen, 21 % oxygen

Easy explanation: Medical air is like normal air, but has been treated in air plants. It is used to provide air to the patients during or after surgery and maintain the normal respiratory functions.