An<unk>  is a<unk>  test that is performed specifically on<unk><unk> , to determine the concentrations of carbon dioxide, oxygen and bicarbonate, as well as the pH of the<unk> . Its main use is in pulmonology, to determine<unk>  exchange levels in the<unk>  related to lung function, but it is also used in nephrology, and used to evaluate metabolic disorders such as acidosis and alkalosis. As its name implies, the sample is taken from an artery, which is more uncomfortable and difficult than venipuncture.
Arterial blood gas
Pulse oximetry
Fraction of inspired oxygen
Plethysmograph
Pulmonary gas pressures
Cardiotocograph
Cardiac electrophysiology
Central venous pressure