Have you ever had blood drawn? Have you wondered how they knew where to go and which vein to stick? It's a fairly simple process. If you follow a few simple procedures it's not so hard. When done correctly, a venipuncture is quick and almost painless for the patient.
The first step would be to obtain a patient requisition form from your patient's doctor and your patient and their arm. Greet and identify you patient. Gather the necessary equipment to perform a venipuncture. You will need 70% isopropyl alcohol wipes, sterile cotton gauze, latex or vinyl gloves, tourniquet, evacuated tubes, sterile needles, tube adapters, bandage, and an ink pen.
It is important to remember that you must first wash your hands after gathering your supplies. Proper hand washing insures a germ free environment when drawing blood for testing. To do this correctly you need warm water, disposable paper towels and an antibacterial soap. Wet both hands with warm water with fingertips facing down towards the drain. Place soap in palms of hands and lather, rubbing back and forth for 15 seconds. Rinse soap off thoroughly and dry hands with fresh paper towels. Dispose of paper towels in trash can.
Now that your hands are germ free and dry, don or put on your disposable gloves. Pull them on carefully to prevent tearing the latex or vinyl. Be sure the gloves fit snug to ease in palpitation. Apply tourniquet 2 - 3 inches above the antecubital fossa (area at the inside bend of the elbow), be sure that the tourniquet is tied tightly. Make sure the patient has pulled up sleeves before applying the tourniquet. Shirt sleeves hinder the effectiveness of the tourniquet. .
Now that the tourniquet is on you need to palpate for a vein. When palpating use your index or middle finger of non-dominant hand. Do not use your thumb because it has it's own pulse and may mislead you. Feel for the median and cephalic veins first. These are the vein that run down the center and the thumb side of the arm.