Blood gas analysis is typically performed using a sample of arterial blood, usually drawn from the radial artery. Nurses may also use other sites like the brachial or femoral arteries. The procedure involves: 1. Cleaning the puncture site with antiseptic. 2. Inserting a needle to draw the blood sample. 3. Transporting the sample to the laboratory for analysis, often using special syringes to prevent air contamination.
