What is the main advantage of transradial access for diagnostic coronary angiography?

• A. Increased patient comfort
• B. Reduced bleeding and vascular complications
• C. Longer ambulation
• D. Higher contrast requirements

Answer: (B)

The main advantage is a lower risk of bleeding and vascular complications. Using the radial artery at the wrist makes hemostasis easier and more reliable because the vessel is superficial and readily compressible. This reduces major bleeding, hematomas, pseudoaneurysms, and arteriovenous fistulas compared with femoral access, which has historically carried higher rates of these complications. While improved patient comfort and earlier ambulation can follow from this safer profile, the core benefit driving the choice is the safer bleeding/vascular outcome.