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Which device measures volume of inspired and expired air?

a) pulmometer
b) spirometer
c) gaseous air transducer
d) perfusion meter

1 Answer

3 votes

Final answer:

The device that measures the volume of inspired and expired air is called a spirometer (Option B).

Step-by-step explanation:

Lung volumes are measured by a technique called spirometry, which is crucial for diagnosing various respiratory diseases. For instance, spirometry test results include measurements like the forced expiratory volume (FEV), which is how much air a person can force out of their lungs in one second, and the forced vital capacity (FVC), the total amount of air that can be forcibly exhaled.

The FEV1/FVC ratio obtained from these measurements can help diagnose conditions such as asthma, emphysema, and fibrosis. A high FEV1/FVC ratio suggests lung fibrosis, while a low ratio is characteristic of asthma. Thus, spirometry is a vital tool in both the diagnosis and monitoring of respiratory conditions.

Thus, the correct option is B.

User Fernando Allen
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