The purpose of a drainage bag is to:
I. collect water in the circuit
II. prevent contamination of the reservoir
III. prevent back pressure when using entrainment nebulizers
IV. add a reservoir to stabilize F_IO₂ delivery

Question

Quizplus · Accepted Answer

The purpose of a drainage bag in a medical context, particularly in respiratory therapy, is to collect water that has condensed in the circuit, prevent contamination of the reservoir by keeping collected water separate, and prevent back pressure when using entrainment nebulizers, which could otherwise affect the delivery of therapy. Adding a reservoir to stabilize flow or oxygen delivery is not a function of a drainage bag.

The Purpose of a Drainage Bag Is To