The act of puncturing a vein either to inject a drug or to take a blood sample.
The puncture of a vein for any therapeutic purpose; for example, to extract blood for laboratory tests.
The insertion of a needle into a vein, usually for the purpose of injecting a drug or withdrawing blood for haematological or biochemical analysis. The usual site for venepuncture in adults is the median cubital vein in the forearm.
A routine procedure involves the insertion of a needle into a vein, typically located in the forearm, for the purpose of introducing fluids or drawing blood. To engorge the veins, a tourniquet is employed, and a sterile needle is carefully placed. If blood needs to be drawn or medication administered, a syringe is connected to the needle. In cases of intravenous infusion, a cannula (a tube) is introduced through the needle. Once the desired fluid has been introduced or withdrawn, the needle or cannula is removed. The site is then covered, and pressure is applied to halt any potential bleeding. While generally not painful, the procedure might lead to some discomfort.