What is a key advantage of radial artery access for diagnostic catheterization?

• A. Radial access is best for left heart bypass surgery.
• B. Radial access does not allow catheter maneuverability.
• C. Radial artery access reduces bleeding and vascular complications.
• D. Radial access increases procedure time and radiation exposure.

Answer: (C)

Radial artery access lowers bleeding and vascular complications in diagnostic catheterization. The puncture site is small, superficial, and easily compressible, so bleeding is easier to control with direct pressure or a compression device, which reduces major vascular complications, hematomas, and pseudoaneurysms compared with femoral access. The hand has robust collateral circulation through the ulnar artery, so hand perfusion is typically preserved if issues arise. This combination makes the radial approach safer and often allows quicker ambulation and shorter hospital stays after the procedure. The other statements don’t reflect this advantage: radial access isn’t specifically chosen for left heart bypass, it does allow catheter maneuverability, and it doesn’t inherently increase procedure time and radiation exposure.