Why does a phlebotomist anchor a vein?

Anchor 2 is most important to the phlebotomist during the blood draw. Anchor 2 maintains the device as steady as possible, which allows the phlebotomist to exchange one tube with another without the needle being inadvertently pulled from the arm. This reduces the occurrence of hematomas.

Why do we anchor the skin?

A person will often feel more in control of the situation if you give them something to do. This may work as the needle is being removed, too. Anchors Away – Stretching the skin by “anchoring” the vein doesn’t just help you stick the vein on the first try, it also helps make the stick less painful.

Should the vein be anchored above or below the insertion site?

Anchor the vein with the thumb of your nondominant hand 1 to 2 in (2.5 to 5.1 cm) below the insertion site, being careful not to touch it. If you touch the insertion site, it must be resanitized.

What happens when a phlebotomist misses a vein?

If you have a blown vein, it means that the vein has ruptured and is leaking blood. It happens when a nurse or other healthcare professional attempts to insert a needle into a vein, and things don’t go quite right. When the vein starts to leak, you’ll notice your skin darkening around the insertion site.

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What does it mean to anchor a vein?

Anchor the vein by holding the patient’s arm and placing a thumb BELOW the venepuncture site. Ask the patient to form a fist so the veins are more prominent. Enter the vein swiftly at a 30 degree angle or less, and continue to introduce the needle along the vein at the easiest angle of entry.

What are the 3 main veins to draw blood?


The most site for venipuncture is the antecubital fossa located in the anterior elbow at the fold. This area houses three veins: the cephalic, median cubital, and basilic veins (Figure 1).

What if you can’t find a vein?

Tips and Tricks for Accessing Problem Veins

  1. Get warm. When the body is warm, blood flow increases, dilating the veins and making them easier to find and stick. …
  2. Use gravity. Increase blood flow to your arm and hand by letting gravity do the work. …
  3. Hydrate. When the body is properly hydrated, veins become more dilated. …
  4. Relax.

What is the most important step in phlebotomy?

Venipuncture is the process of collecting or “draw- ing” blood from a vein and the most common way to collect blood specimens for laboratory testing. It is the most frequent procedure performed by a phle- botomist and the most important step in this proce- dure is patient identification.

Why is there a lump where I got blood drawn?

Another rare complication is for a small clot (or thrombus) to form in the vein at the site where the needle was inserted. This is noticeable as a small firm lump just under the skin. The lump may or may not be tender and will go away over a couple of weeks.

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What happens if you hit an artery during venipuncture?

Hitting an artery can be painful and dangerous. Arterial blood travels away from the heart so whatever is injected goes straight to body limbs and extremities. Injection particles get stuck in blood capillaries and cut off circulation. This can result in a lack of blood flow, eventually causing the tissue to die.

What does a burst vein look like?

Blood vessels can burst for many reasons, but it usually happens as a result of an injury. Bleeding into the skin can appear as small dots, called petechiae, or in larger, flat patches, called purpura.

Which vein is best for cannulation?

The preferred site for cannula insertion is the dorsum of the hand. The antecubital fossa should generally be avoided unless there are no other appropriate sites. The chosen vein should be visible, straight, easily compressed and not over a joint (SCHN 2019).

How does a phlebotomist draw blood?

Phlebotomy is when someone uses a needle to take blood from a vein, usually in your arm. Also called a blood draw or venipuncture, it’s an important tool for diagnosing many medical conditions. Usually the blood is sent to a laboratory for testing.

What veins should I avoid for cannulation?

The veins of choice are the cephalic or basilic. Avoid using the antecubital veins as this will restrict the patient’s movement and increase the risk of complications such as phlebitis and infiltration (Dougherty & Watson, 2011; RCN, 2010).