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Venepuncture

Venepuncture is the most used process in medicine, which involves the puncturing of vein, in order to take blood for diagnostic procedures; inject nutrients, medications, chemotherapy, intravenous therapy etc. One can also say that the puncture of a vein for therapeutic or surgical purposes is known as venepuncture.

This speciality requires great skills to draw blood from veins. The procedure is complex, if carried out inaccurately; it may cause life threatening problems. Therefore a following set of rules are followed before puncturing veins, and drawing blood or injecting nutrients. The blood drawn out of the body is either sent to labs for different diagnostic tests or kept safely for future use; mainly transfusion. In some cases, venepuncture is carried out to remove blood due to excessive amount of red blood cells and iron content in the blood flow.

Venepunture is carried out by lab technicians, nurses, and phlebotomists, EMTs, dialysis technicians, paramedics or other nursing staff. They keep the blood sampling safe, labelled and hygienic; making sure that the blood kept for future is transfusion-safe.

Venupuncture Procedure Step-by-step:

The whole procedure of venepuncture is complex and all the rules applying to it must b followed strictly. Firstly, before starting the whole procedure, phlebotomists and lab technicians apply alcohol gel on their hands; ensuring self-hygiene. Following set of tasks must be done to ensure a good, efficient venepuncture:

  • Introduce yourself to your patients; reassuring them about the procedure. Sometimes children or elderly fuss or panic; calming them is very essential and tiring. Better explain the whole procedure to them beforehand.
  • Position the patient’s arm in the most comfortable of positions. Locate and select a vein. Re-checking the vein before starting the process is better; make sure you’re comfortable with its course.
  • Apply the tourniquet.
  • Put on good, disposable gloves. This is pre-requisite for hygienic venepuncture. You do not only protect yourself, but also your patient from pathogens and germs that may travel in case there is some spillage.
  • Cleanse the site with alcohol wipes in downward strokes.
  • Remove the cap of the disposable surgical syringe. The syringe has a needle at the front, and a plastic, piston-like thing attached at the end. Insert the needle gently, bevel upwards inside the vein. Pull that plastic, piston-structure to draw blood from the veins. The blood collects inside a plastic tube, which is located in the middle part of the syringe. Sometimes a syringe is not used, instead a needle is inserted, and then a bottle is attached; filled and then removed.
  • Retract and dispose the needle, and remove the tourniquet.
  • Apply gauze on the puncture. In some cases plaster is also applied.
  • Dispose the gloves in the medical bin.

Blood is labelled, and kept safe for further use and procedures. Venepunture ends and completes here.

Required equipments:
    • Alcohol gel
    • Alcohol wipes
    • Disposable gloves
    • A disposable tourniquet
    • Needle and a needle holder; sample tubes/ syringe
    • Gauze/plaster
    • A sharps bin/clinical bin

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