Four Types Of Blood Specimens

Apr. 11, 2018

Blood specimen type:

(1) Whole Blood

1. Intravenous whole blood: The most widely used whole blood blood sample comes from the vein. The site of blood collection is the anterior cubital vein and the wrist vein. In children and neonates, the jugular vein and the femoral vein are sometimes used.

2. Arterial whole blood: It is mainly used for blood gas analysis. There are femoral arteries, iliac arteries and iliac arteries at the blood collection site.

Vacuum blood collection tube

3. Capillaries whole blood: also known as skin blood collection, apply to only a small amount of blood tests or infants and young children, the site of the earlobe, fingertips, sometimes children with big toe or heel.

(B) Plasma

Whole blood anticoagulant centrifugation removes the blood cell component, which is plasma, for plasma chemical composition determination and coagulation tests.

(c) Serum

Serum (serum) is a liquid that is isolated after natural blood coagulation after isolation. Serum and plasma are collected and mainly lack of fibrinogen, and there are no differences in other chemical components. Serum is mainly used for clinical chemistry and immunology testing.

(d) Separation or concentration of blood cell components

Some special test items require specific cells as specimens, such as concentrated granulocytes, lymphocytes, isolated mononuclear cells, and the like.

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