During venipuncture,the phlcbotomist, a technician who takes blood, inserts a needle into a vein and withdraws blood into a specimen tube,which is sent to the haematology laboratory for analysis. Usually the phlebotomist can find a vein in the inner part of the elbow,the antecubital fossa, that is casily accessiblc. She may apply a tourniquet -a tight band -above the site, or the patient may be asked to clench their hand to make a fst, in order to make the vein more prominent. Afterwards, the patient may be asked to press lightly on a dressing, usually a piece of gauze, to help the blood to cot and to prevent swelling and a haematoma (a black and blue mark, or a bruise) where the vein was punctured.
Note: A bruise is a specific mark Bruising can be used to describe a number of bruises or a larger area-The patient exhibited bruising on the right forearm.
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