A machine used for testing lung capacity is a ____.

A machine used for testing lung capacity is a ____.

• A. Sphygmomanometer
• B. Stethoscope
• C. Spirometer
• D. Thermometer

Answer: (C)

Measuring how much air the lungs can hold and how quickly it’s exhaled is done with a spirometer. This device quantifies lung volumes and capacities, such as tidal volume, vital capacity, and, often, forced expiratory measures, to assess overall lung function. It’s the primary tool for diagnosing and monitoring respiratory conditions like asthma or COPD and for distinguishing different patterns of lung disease. The other tools have different purposes: a sphygmomanometer measures blood pressure, a stethoscope helps listen to heart and lung sounds but doesn’t quantify lung capacity, and a thermometer checks body temperature.

Measuring how much air the lungs can hold and how quickly it’s exhaled is done with a spirometer. This device quantifies lung volumes and capacities, such as tidal volume, vital capacity, and, often, forced expiratory measures, to assess overall lung function. It’s the primary tool for diagnosing and monitoring respiratory conditions like asthma or COPD and for distinguishing different patterns of lung disease. The other tools have different purposes: a sphygmomanometer measures blood pressure, a stethoscope helps listen to heart and lung sounds but doesn’t quantify lung capacity, and a thermometer checks body temperature.