Which item is not typically listed as equipment for a DSA femoral run-off?

• A. Step table with bolus chase capability
• B. Power injector
• C. Non-ionic contrast
• D. Sterile drapes

Answer: (D)

The key idea here is what specific equipment enhances dynamic, contrast-enhanced imaging of the leg arteries. A step table with bolus chase capability is valuable because it lets you synchronize imaging with the arrival of the contrast bolus, so you can clearly track flow from the femoral artery down to the distal run-off vessels. A power injector is essential for delivering a consistent, rapid bolus at a controlled rate, which is critical for high-quality subtraction angiography and reliable visualization of stenoses or occlusions. Non-ionic contrast is used because it provides good image quality with a lower risk of adverse reactions compared with older ionic agents, making it safer for multiple injections during the run-off study.

Sterile drapes are important for maintaining a sterile field, but they are general procedural supplies rather than part of the specialized imaging equipment used for the DSA femoral run-off, so they are not typically listed as equipment specific to this imaging study.