Final answer:
TRUE. A tourniquet should never be used when drawing a venous blood sample from the hand.
Step-by-step explanation:
A tourniquet should never be used when a venous blood sample is to be drawn from the hand. A tourniquet is used to temporarily cut off blood flow into the arm when drawing arterial blood samples, not venous blood samples. When drawing venous blood samples from the hand, it is important to use appropriate techniques without the use of a tourniquet.