Which action would be inappropriate when performing ABG collection from the femoral artery due to potential complications?

• A. Use sterile technique
• B. Apply firm manual pressure after puncture
• C. Monitor for hematoma
• D. Leave a tourniquet around the thigh after arterial puncture

Answer: (D)

When collecting arterial blood from the femoral artery, the goal is to stop bleeding safely without causing tissue damage. Leaving a tourniquet around the thigh after arterial puncture is inappropriate because it maintains arterial and tissue compression, which can lead to a larger hematoma, vessel injury, or limb ischemia. After the sample is drawn, apply firm manual pressure to the puncture site to achieve hemostasis, then place a sterile dressing and remove the tourniquet promptly. Sterile technique is essential to prevent infection, and watching the site for hematoma helps catch complications early. In short, don’t leave a tourniquet in place after arterial access; rely on direct pressure and vigilant monitoring instead.