Role of plasma in the body

The article was written by Specialist Doctor II Le Thi Na - Laboratory Department - Vinmec Times City International Hospital

Plasma is an important and indispensable component in the blood. Plasma is a pale yellow and transparent liquid that accounts for about 55-65% of the total blood volume in the human body. The color of the plasma can change according to the physiological state of the body. For example, after each meal, the plasma will be cloudy, after a few hours it will be lemon yellow and clearer.

1. Plasma components

Plasma is the liquid part of blood that contains many substances important for life. Density 1.061 ± 0.005, pH 7.3-7.4 atm, osmotic pressure 7.2- 8.1. Plasma consists of the following components:
Water: in an adult, water accounts for about 70% of the body's total weight, most of the water is located outside the cells in the interstitial fluid and circulating blood, maintaining the water balance between the inside and the blood. outside the cell. Minerals: sodium, potassium, chlorine, magnesium, calcium, other alkalis, iron... Protein includes albumin and globulin. In globulin there are 4 components α1, α2, β and γ. In γ-globulin, there are immunoglobulins such as IgG, IgA, IgE, IgD and IgM. >>> What is Immune Globulin?
Lipids: Participate in homeostasis, nutrition, and organization. Sugar: create energy Vitamins participate in the synthesis of substances and energy metabolism.

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2. The role of plasma in the body

Immune function: includes Ig and complements involved in the body's defense process: increased phagocytosis, specific response to antigens and bacteria, viruses. Maintain colloidal pressure – blood viscosity: due to albumin. Coagulation function: includes anticoagulants and anticoagulants (antithrombin III, protein C, protein S). Transport substances: transport nutrients to the organization and transport waste products eliminated through the kidneys, lungs, sweat, digestion such as: Transferrin transports iron, transcobalamin transports b12, haptoglobin transports hemoglobin naturally do. Transport proteins necessary for cell synthesis and organization. Hormones and cytokines are in small amounts but play an important role in every function of the body.

Plasma has an important role in the body, so when there is a deficiency of a certain component in the plasma or loss of plasma, it leads to the disorder of the body. In the current practice of blood transfusion, it is possible to extract plasma and each component of plasma to compensate when the body is deficient.
Vinmec International General Hospital is one of the hospitals that not only ensures professional quality with a team of leading medical doctors, a system of modern equipment and technology. The hospital provides comprehensive and professional medical examination, consultation and treatment services, with a civilized, polite, safe and sterile medical examination and treatment space. Customers when choosing to perform tests here can be completely assured of the accuracy of test results.

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