Which statement correctly identifies common arterial access sites for diagnostic and therapeutic peripheral vascular procedures?

• A. Radial and brachial arteries are standard; the common femoral artery is not typically used.
• B. Common femoral artery is standard; radial and brachial arteries are used as alternative access sites.
• C. Only the popliteal artery is used for diagnostic and therapeutic peripheral vascular procedures.
• D. Internal jugular vein is the preferred arterial access site.

Answer: (B)

The main idea is where arterial access is obtained for diagnostic and therapeutic peripheral vascular procedures and why the common femoral artery is the standard choice while radial and brachial arteries serve as alternatives. The common femoral artery is favored because it provides a large, easily cannulated lumen, is relatively straightforward to locate, and supports a wide range of sheaths and devices with reliable hemostasis after the procedure. This makes it the go-to route for most peripheral interventions.

Radial and brachial arteries are used when the femoral route isn’t ideal. Reasons include prior groin surgery or disease that makes femoral access risky, obesity or anatomy that complicates femoral access, or a desire to reduce bleeding risk and enable earlier ambulation. Radial access, in particular, offers lower major bleeding complications and greater patient comfort in many cases, though it requires adequate vessel size and can be limited by arterial spasm or unfavorable anatomy. Brachial access is an alternative but carries a higher risk of upper-extremity complications and is chosen selectively.

The popliteal artery is not a routine primary access site due to its deeper location and higher complication risk, and the internal jugular vein is venous, not arterial, so it is not used for arterial access.