While the inner elbow is a common site for blood draws, it is often necessary to draw blood from a vein in the hand. This procedure is a standard and safe practice in medical settings. Phlebotomists are equipped to perform venipuncture from various locations, including the back of the hand. This ensures blood can be collected even when typical sites are not accessible.
Reasons for Hand Blood Draws
Drawing blood from the hand is a practical solution when arm veins are not readily available or suitable. This includes patients with small or “rolling” veins, which are challenging to access. Extensive scarring from previous procedures, injuries, or medical conditions can also obscure or damage arm veins, making the hand a viable alternative. Patients who have recently undergone intravenous (IV) therapy in their arms might have compromised arm veins, necessitating a hand draw.
Dehydration can cause veins to become less prominent and more difficult to locate, leading professionals to consider hand veins. Some patients may also prefer a hand draw due to comfort or a history of better outcomes from this site. While arm veins are typically larger and often preferred, the delicate veins in the hand can be suitable for certain types of tests.
The Hand Blood Draw Process
The process for drawing blood from the hand shares similarities with an arm draw but adapts for smaller, more delicate hand veins. The phlebotomist identifies a suitable vein on the back of the hand, often by visual inspection and palpation, sometimes asking the patient to make a fist. The chosen site is then thoroughly cleaned with an antiseptic solution to prevent infection.
A tourniquet is applied around the wrist or forearm to increase blood flow and make veins more visible. Phlebotomists typically use smaller gauge needles for hand draws to reduce the risk of damaging delicate hand veins. The needle is inserted into the vein at a shallow angle, often 30 degrees or less, to ensure proper entry. Once positioned, blood flows into the collection tubes. After enough blood is collected, the tourniquet is released before the needle is gently withdrawn.
Managing Discomfort and Aftercare
During a hand blood draw, patients typically experience a sharp pinch as the needle enters the skin, followed by pressure. While pain perception is subjective, some individuals report a hand draw can feel slightly more painful than an arm draw due to the higher concentration of nerve endings. Staying well-hydrated before the appointment can make veins more prominent, potentially leading to a quicker draw. Relaxation techniques, such as deep breathing, can help alleviate anxiety and muscle tension during the procedure.
After the needle is removed, apply firm pressure to the puncture site with a clean gauze or cotton ball to stop bleeding and prevent bruising. Keeping the hand elevated slightly can reduce swelling. The site should be kept clean and dry for several hours to prevent infection. Minor bruising or a small bump at the site is common and usually resolves within a few days. However, if there is persistent bleeding, significant swelling, increasing pain, or signs of infection like redness, warmth, or pus, seek medical advice.