This is followed by a good, more concise definition: The key term in the definition of platform is 'programmed'. If you can program it, then it's a platform. If you can't, then it's not.. Marc then gets into detail by breaking platforms down into three fundamental approaches or levels:
6 WHO guidelines on drawing blood: best practices in phlebotomy. â¢ capillary sampling (i.e. finger or heel-pricks or, rarely, an ear lobe puncture) for analysis of. capillary blood specimens for all ages; examples include testing of iron levels before blood.
Description. Phlebotomy is performed by a nurse or a technician known as a phlebotomist. Blood is usually taken from a vein on the back of the hand or just below the elbow. Some blood tests, however, may require blood from an artery. The skin over the area is wiped with an antiseptic, and an elastic band is tied around the arm.