CAMRT Radiography Practice Exam 2026 - Free Radiography Practice Questions and Study Guide

The femoral artery is the most commonly used injection site for an abdominal angiogram due to its proximity to major blood vessels supplying the abdominal organs and its accessibility for catheterization. The femoral artery is large and runs close to the surface of the skin in the groin area, which allows for easier access and manipulation during the procedure. This is particularly advantageous in interventional radiology, where precise catheter placement is crucial for effective imaging and treatment.

The other choice options, while relevant to vascular access in other contexts, are not typically utilized for abdominal angiograms. The subclavian artery, while accessible, is less commonly chosen due to its deeper location and increased risk of complications. The radial artery is more commonly used for procedures involving the upper extremities or for coronary angiography. The popliteal artery, located behind the knee, is not ideal for abdominal procedures as it is further from the target region and can present challenges in catheter navigation to the abdominal vessels. Thus, the femoral artery’s combination of accessibility, size, and direct pathway to the abdominal vasculature makes it the preferred choice for this type of angiography.