What is measured by spirometry?

What is measured by spirometry?
A . Lung function
B . Heart function
C . Gastric function
D . Liver function

Answer: A

Explanation:

A spirometer measures breath flow from the lungs.

It is useful in diagnosing asthma, bronchial conditions and many other diseases. It’s important to note that spirometry generally involves forceful expelling of air and so may be harmful to some patients, for example those who have recently undergone thoracic or abdominal surgery.