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.
Technique. 1  Lavery I, Ingram P. Venepuncture: best practice. 2  Phlebotomy. 3  Ernst, Dennis. 4  Wollowitz A, Bijur PE, Esses D, John Gallagher E. Use of Butterfly Needles to Draw Blood Is Independently Associated With Marked Reduction in Hemolysis Compared to Intravenous Catheter.