What may occur if the needle is removed from the arm before removing the tourniquet?

Question

Quizplus · Accepted Answer

If the tourniquet is not removed before the needle is removed, there is a risk that bleeding may continue at the puncture site, which can cause a hematoma or bruising. Additionally, the tourniquet should not be left on for more than a minute, as this can cause venous stasis and hemolysis of the blood specimen. While pain or incomplete filling of the tube may occur as well, bleeding at the puncture site is the most significant concern.

What May Occur If the Needle Is Removed from the Arm