Blood is usually drawn from an artery in the wrist. It may also be drawn from an artery on the inside of the elbow, groin, or other site.
Why do they take blood from artery?
An arterial blood sample is collected from an artery, primarily to determine arterial blood gases. Arterial blood sampling should only be performed by health workers for whom the procedure is in the legal scope of practice for their position in their country and who have demonstrated proficiency after formal training.
How is blood taken from the brachial artery?
Insertion of needle at brachial artery puncture site. Advance the needle slowly. Once the needle enters the lumen of the brachial artery, the arterial blood flow starts to fill the syringe (see the image below). At this point, remove the nondominant hand from the field.
Why is blood taken from arteries and not vein in dialysis?
Joining a vein and an artery together makes the blood vessel larger and stronger. This makes it easier to transfer your blood into the dialysis machine and back again.
What is the most common complication of an arterial puncture?
The most common complication is hemorrhage or hematoma formation at the puncture site. This occurs more often in brachial and femoral punctures than in radial punctures.
What are the signs of an accidental arterial puncture?
Signs of suspected arterial puncture include noting bright red blood with pulsatile flow, blood column moving upwards in the tubing of an infusion set, intense pain and distal ischaemia.  Confirmation is carried out by blood gas analysis, pressure transducer and ultrasound.
How long does nerve damage from blood draw last?
The majority of these injuries are self-limiting and resolve spontaneously. Newman and Waxman found that 70, 90, and 96% of venipuncture-related nerve injuries resolve within 1, 2 and 6 months, respectively.
Can a phlebotomist hit an artery?
If a phlebotomist uses the underside of the wrist, which is a no-draw area, there is the possibility of hitting the radial or ulnar nerve or artery.
Which artery is most commonly used for arterial blood gas collection?
Various arteries can be used for blood collection. The radial, brachial, and femoral arteries are the sites most commonly punctured for blood gas sampling in adults. The first choice is the radial artery due to its superficial anatomical location.
In which condition arterial blood gas puncture is not commonly done?
Avoid puncture of the brachial artery or femoral artery in patients with diminished or absent distal pulses; the absence of distal pulses may signal severe peripheral vascular disease.
Can nurses draw arterial blood gases?
The key skill required is arterial blood gas sampling. This has traditionally been the role of the doctor, however by using an education and training package along with a competency-based assessment, nurses can now perform this extended role.