Blood gas analysis is a frequently used test in respiratory medicine, mainly for the measurement of respiratory system functions such as ventilation and air exchange. It can be used as a reference for testing especially in clinical cases of hypoxemia and hypercarbia as well as electrolyte disorders and acid-base imbalance. In clinical practice, a blood gas analyzer is used to measure the oxygen and carbon dioxide content inside the arterial blood and the pH value of the blood, which is measured by collecting blood from the arteries or capillaries. High or low levels of carbon dioxide and high or low levels of oxygen in the blood can be measured to clarify the presence of these pathological changes. It is used clinically to identify diseases such as respiratory distress syndrome, bronchial asthma, acute attacks of chronic bronchitis, and diffuse interstitial lung fibrosis with dyspnea from a variety of causes.