Question

what does a pulmonary function test measure?
presence of apnea
oxygen levels
breathing and lung function
respiration rates

Explanation:

A pulmonary function test assesses how well the lungs are working by measuring aspects of breathing such as the volume and flow of air. It is not specifically for detecting apnea, oxygen levels, or just respiration rates. It comprehensively evaluates breathing and lung function.

Answer:

C. Breathing and lung function