Describe the function of the capnometer.

The capnometer is a specialized device used to measure the concentration of carbon dioxide (CO2) in exhaled air. It plays a crucial role in monitoring ventilation and assessing the efficiency of gas exchange in patients, especially during anesthesia and emergency situations. High levels of CO2 in exhaled air can indicate hypoventilation or respiratory failure, while low levels may suggest hyperventilation or inadequate CO2 production.

Understanding the function of the capnometer is essential for anesthesia technicians, as it aids in ensuring that patients are receiving appropriate ventilation and can help detect potential complications early. The other functions listed, such as measuring blood oxygen levels, blood pressure, or body temperature, are not associated with the capnometer; those tasks are typically performed with different monitoring devices such as pulse oximeters, sphygmomanometers, and thermometers, respectively.