Question: What vein is used for blood draw?

Relevant Anatomy. The median cubital and cephalic veins are preferred for blood sampling, but other arm and hand veins may be used. The cephalic vein is located on the lateral (radial) side of the arm, and the basilic vein is located on the medial (ulnar) side.

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 is the most common vein to draw blood from?

The median antecubital vein is the most common for blood draws. It is in the inner arm, anterior of the elbow joint. This vein is associated with minimal pain and is the most prominent when anchored. Located on the lateral portion of the arm, the cephalic vein is the second most common draw site choice.

What veins should be used for drawing blood?

The median cubital vein is the first choice for blood draws because it has a decreased proximity to arteries and nerves in the arm. The more lateral cephalic vein is the second choice and the basilic vein in the medial arm is the last choice.

IT IS INTERESTING:  How does lying supine affect blood pressure?

Which vein should not be used for venipuncture?

The cephalic and basilic veins have a greater tendency to roll and veinpuncture may be more painful from these sites. Sometimes venipuncture is performed on hand veins when the veins in the antecubital fossa are not appropriate.

Which of the following veins in arm is the preferred vein for venipuncture?

The median cubital vein is the larger and more stable vein and is preferred for venipuncture.

Why is the cephalic vein used for venipuncture?

These findings and the present results indicate that the cephalic vein at the cubital fossa is a relatively safe venipuncture site because of its distance from the median nerve, brachial artery, and superficial nerve.

What is the correct order to draw blood?

The recommended order of draw for plastic collection tubes is:

  1. First – blood culture bottle or tube (yellow or yellow-black top)
  2. Second – coagulation tube (light blue top). …
  3. Third – non-additive tube (red top)
  4. Last draw – additive tubes in this order:

Why can’t you draw blood from an IV?

Blood that is drawn from a vein that has an intravenous (IV) line may be diluted by the IV fluid. This can ultimately affect the accuracy of the blood test results. Therefore, an arm containing an IV should not be used to draw blood specimens if it can be avoided.