Arterial Blood Gas analysis is a laboratory test that assesses a patient's respiratory and acid-base function. It is widely used in pneumology and intensive care.
Many gases dissolve in other substances in a liquid state, blood contains some dissolved gases. Arterial gasometry detects them, as well as those chemically linked to blood components, mainly oxygen and carbon dioxide captured by red blood cells.
The blood gas concentrations give plasma parameters allowing to appreciate the respiratory function of the organism as well as its acid-base balance. This examination allows monitoring of the patient's hematosis.
The interpretation is based on the parameters entered. The information of Na+ and Cl- is not mandatory, but the calculation of the anion gap can guide the interpretation more precisely.