There are two basic types of blood collection procedures: skin (dermal)
puncture and venipuncture. Skin puncture is used to collect capillary blood.
The puncture site for adults and children is usually the fingertip, and for infants
the sites are the heel or the great toe. Venipuncture is necessary for
most diagnostic tests. As the name implies, blood is withdrawn from a vein
through the use of a needle and special collection tube or syringe.
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