What are the Apparatus Used in Measuring Respiratory Gas?

There are several apparatuses used to measure respiratory gases:

Spirometer: A spirometer is a device that measures the volume of air inhaled and exhaled by a person. It is commonly used to measure lung function.

Gas analyzer: A gas analyzer is a device that measures the concentrations of oxygen and carbon dioxide in respiratory gases. It is commonly used to measure the respiratory quotient (RQ) and to monitor respiratory metabolism.

Oximeter: An oximeter is a device that measures the oxygen saturation of arterial blood. It is commonly used to monitor the oxygen status of critically ill patients.

Plethysmograph: A plethysmograph is a device that measures changes in volume in a body part, such as the chest or limb. It is commonly used to measure lung volumes and airway resistance.

Capnograph: A capnograph is a device that measures the concentration of carbon dioxide in respiratory gases. It is commonly used to monitor respiratory function during anesthesia.

Tidal volume monitor: A tidal volume monitor is a device that measures the volume of air inhaled and exhaled with each breath. It is commonly used to monitor the ventilation of patients on mechanical ventilators.

These devices are used in various clinical settings to assess respiratory function and monitor the status of critically ill patients.