Capnography devices are one of the important diagnostic tools widely used in the medical field. These devices help evaluate respiratory functions by measuring respiratory carbon dioxide (CO2) levels. Capnography analyzes respiratory gases and presents them as a graph, providing doctors with important information about the patient's respiratory status.

Capnography devices are widely used during the anesthesia process, emergency rooms, intensive care units and monitoring patients with respiratory failure. It is also used in procedures such as evaluation of respiratory functions, intubation and monitoring of airway patency.

As a working principle, capnography devices measure the amount of CO2 in the breathing air. The gas released through breathing is detected and analyzed with the help of a sensor. In this way, CO2 levels are tracked during each breath and a graph is created. This chart allows doctors to evaluate breathing efficiency, ventilation rate, and airway patency.

Some technical terms related to capnography devices are:

End-tidal CO2 (ETCO2): The highest CO2 level measured at the end of the respiratory cycle. It is important to evaluate the effectiveness of breathing.

PetCO2 (Partial pressure of end-tidal CO2): Partial pressure of the ETCO2 level measured at the end of the respiratory cycle. It is used to evaluate respiratory functions.

Capnogram: Graph showing the change of CO2 levels over time. It is an important tool in evaluating respiratory functions and ventilation performance.

Baseline: The bottom line of the capnogram. Normally it represents zero CO2 level.

Capnography devices have an important role in evaluating respiratory functions and monitoring the respiratory status of patients. These devices provide doctors with many important information such as the anesthesia process, respiratory failure, and the effectiveness of intubation and help increase the safety of patients.