CPT® Code 36625

Arterial catheterization or cannulation is a medical procedure that involves the insertion of a catheter into an artery for various purposes, including sampling, monitoring, or transfusion of blood. This procedure is essential in clinical settings for obtaining arterial blood samples, which are crucial for blood gas analysis, monitoring blood pressure in critically ill patients, and facilitating blood transfusions. The radial artery is the most frequently utilized site for this procedure due to its accessibility and ease of use; however, alternative sites such as the axillary and femoral arteries may also be employed depending on the clinical scenario and patient condition. The process begins with the selection of an appropriate insertion site, followed by the preparation of the skin to ensure a sterile environment. A local anesthetic is administered to minimize discomfort during the procedure. The Seldinger technique is commonly used, which involves puncturing the skin and the artery with a needle, or alternatively, a cutdown may be performed to directly expose the artery for easier access. This technique allows for the safe and effective placement of the catheter, which is then secured in place to ensure proper function and minimize complications.