The blood sample should be centrifuged immediately and the plasma removed from the blood cells. It is common to use microtainer collection tubes of lithium heparin, which contain plasma separators.

Blood samples treated with heparin can be analyzed immediately after collection and can also be centrifuged so that plasma can be removed and frozen until later analysis 7,8. Cephalic and ...

Inside you, there is an amazing network of blood vessels, the tubes that carry blood all around your body. Every part of the body needs oxygen, food and water. The blood vessels are a bit like ...