What are the two most common veins for venipuncture?

Major arm veins used for phlebotomy. The median cubital vein is the larger and more stable vein and is preferred for venipuncture. The cephalic and basilic veins have a greater tendency to roll and veinpuncture may be more painful from these sites.

What type of veins are suitable for Venepuncture?

The optimal sites for venepuncture are the veins in the antecubital fossa – the cephalic, basilic and median cubital veins. A suitable vein will be ‘bouncy’ to the touch, have no pulse and refill when depressed.

What are the 2 common sites venipuncture is performed?

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 second vein of choice for venipuncture?

Venipuncture. The median cubital vein in the antecubital fossa is the most commonly used site due to its accessibility and size, followed by the neighboring cephalic and basilic veins [13,49,51,52].

How would you select an appropriate vein for a venipuncture procedure?

Select the appropriate vein for venipuncture.

1. The larger median cubital, basilic and cephalic veins are most frequently used, but other may be necessary and will become more prominent if the patient closes his fist tightly.
2. At no time may phlebotomists perform venipuncture on an artery.

What is peripheral puncture?

Puncture of a peripheral vein is the most common invasive procedure performed in the Emergency Department. While some newer point-of-care testing techniques require only capillary blood, the vast majority of laboratory studies require venous blood.

Are engorged veins suitable for venipuncture?

A suitable vein for venipuncture feels soft, elastic, and b. engorged. c.

What is peripheral Venepuncture?

As previously stated, peripheral IV cannulation involves inserting an IV cannula into a peripheral vein. Primarily the veins of the hand or forearm are used. Venepuncture involves inserting a needle into the peripheral veins, for the purpose of aspirating blood.

Why cephalic vein is second choice for venipuncture?

Therefore, our present study suggests the following points: (1) 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; (2) when puncturing the cephalic vein is difficult because it is not visible, the median …

What is vein selection based on?

Vein selection with CVAD is dictated by insertion risk related to site, vein size, depth, and surrounding structures that may impact risk of complications (i.e., nerves, lymphatic tissue, artery) (Moureau 2017).

What needle size would not be appropriate to draw blood with?

18 Gauge Needles 18g needles are not used for routine blood draws. A needle this large is used for donating more substantial quantities of blood that require a faster blood flow rate, such as blood donor units and therapeutic phlebotomy.

What is peripheral vein?

The peripheral veins of normal persons are distensible vessels that contain approximately two-thirds of the total blood volume and can accept or donate blood with relatively little change in pressure.

How do I choose the right site for venipuncture?

Choosing an appropriate site for venipuncture is crucial for a successful venipuncture. The location, size, and feel of the vein are important in selecting which vein to use. The widest, deepest part of the vein is usually the easiest from which to draw.

When is the femoral vein used for venipuncture?

When the patient is critically ill and peripheral venipuncture proves impossible, the femoral vein, which is a site for central catheterization, may be used for venipuncture. In the femoral triangle, the anatomic relationship from lateral to medial is nerve, artery, vein, and lymphatic,…

What precautions should be taken to avoid arterial puncture in venous insufficiency?

Caution must be taken to avoid arterial puncture. Leg veins (eg, dorsal digital veins and the greater saphenous vein inferoanterior to the medial malleolus) or external jugular veins may be used if upper extremity veins are inaccessible.

What veins are used to draw blood from the arm?

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.