The nurse is to initiate an intravenous line and applies the tourniquet to the selected site, the nurse would release the tourniquet once there is a blood flow in the needle.
What is Tourniquet?
A tourniquet is used by the phlebotomist to evaluate and determine the location of a suitable vein for venipuncture.
Once sufficient amount of blood has been collected, release the tourniquet before withdrawing the needle. Tourniquet should not be left on longer than 1 minute prevent formation of a hematoma, which is a reddened, swollen area where blood collects under the skin. A prolonged tourniquet time may lead to pool of blood at the venipuncture site, a condition called hemoconcentration.
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Answer:
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