CPT® Code 36640

Arterial catheterization for prolonged infusion therapy, specifically for chemotherapy, involves the insertion of a catheter into an artery to facilitate the delivery of medication directly into the bloodstream. This procedure is commonly performed using the radial artery, although other sites such as the axillary and femoral arteries may also be utilized depending on the clinical scenario and patient anatomy. The process begins with the careful selection of the insertion site, followed by thorough preparation of the skin to ensure a sterile environment, which is critical to prevent infection. A local anesthetic is administered to minimize discomfort during the procedure. The skin is then incised to access the artery, which is meticulously dissected free from surrounding tissues to allow for safe puncture. Utilizing the Seldinger technique, a guidewire is introduced through a needle puncture into the artery, which is then advanced several centimeters to facilitate the placement of an introducer sheath. This sheath, along with a dilator, is advanced over the guidewire, after which both the guidewire and dilator are removed. The arterial line is subsequently advanced through the introducer sheath and into the artery, ensuring proper placement is confirmed through radiographic imaging. Finally, the catheter is secured in place with tape or sutures, and a dressing is applied to protect the insertion site, ensuring the integrity of the access point for ongoing infusion therapy.