Question

multiple choice question
what is the name of the medical device used to measure air volumes (except the residual volume)?
spirometer
sphygmomanometer
electrocardiogram
flow cytometer

Explanation:

A spirometer is a medical device used to measure air volumes (except residual volume). A sphygmomanometer measures blood pressure. An electrocardiogram records the heart's electrical activity. A flow cytometer analyzes cells.

Answer:

spirometer