9/1/2023 0 Comments Venipuncture sites diagramIt has the tendency to roll sometimes so care must be taken to anchor it when inserting the needle. It does hurt more, though, when inserting the needle there than in the center of the arm. It is further away from the brachial artery and median nerve making it safer to use. It is usually easy to find as its near the surface of the skin and is usually larger than the basilic vein. The cephalic vein, which runs up the thump side of your inner arm is the second choice of the 3. Once you have found it, take care in anchoring the vein to prevent rolling when you insert the needle to draw blood. Put on the tourniquet and feel for the vein. How to find the vein? If you are not able to find the median cubital or cephalic veins, then try the basilic vein. In such cases, the phlebotomist can’t locate the median cubital or cephalic vein but the basilic vein is easier to find. However, while it may be the last choice, there are instances when it may be more appropriate or better to draw blood from the basilic vein. Because of the nerves surrounding the area drawing blood may be more painful.Īlso, it is sometimes more difficult to find and less stable than the other main veins as it rolls or moves when inserting the needle. It is closer to the brachial artery and median nerve making it more likely that a puncture could lead to an injury of one of those structures. The basilic vein is the last choice for venipuncture. Among the 3 main veins, it is probably the one closest to the elbow. The basilic vein basically runs from the palm of the hand and up your arm on the side of the ulna. Once you have found it and are confident proceed with the next steps. If it is deeper in the arm it may take a little longer to feel and find it. If the vein is close to the surface, you should find it easily. How to find the vein? Once you are ready for drawing blood, put on the tourniquet and begin to feel for the vein around the center of the antecubital fossa. Knowing the anatomy of the arm will help you in locating and identifying the median cubital vein. It is usually easy to access and is more stable. The median cubital vein is the first choice for venipuncture. Also, It will be more easily felt in some individuals depending on the amount of muscle and fat tissue the person have. Most times it will be big and plump but the size will vary depending on each individual. And, on some others it will be deeper in their arm. On others it will be just below the surface. On many persons’ arm it will be slightly rising above the skin surface. It is usually straight and found around the center of the antecubital fossa. The median cubital vein connects the cephalic vein with the basilic vein. Why is the Median Cubital Vein First Choice? Most of the samples you are going to draw will be from that vein in the center of the arm. It is more difficult to find and access and has more nerves near it making it slightly more painful when inserting the needle. It is the best because its larger and rolls or moves less than other veins. The best vein for drawing blood is the median cubital vein. The forearm and at the back of the hand are also other possible areas for drawing a sample. There are about three main areas for drawing blood: the median cubital, cephalic, and basilic veins.
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