Complete Blood Count (cont.)

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What are the functions of the cells in a complete blood count (CBC)?

The cells in the CBC (white blood cells, red blood cells, and platelets) have unique functions. Generally speaking, white blood cells are an essential part of the immune system and help the body fight infections. Each different component of the white blood cell (the WBC differential) plays a specific role in the immune system.

Red blood cells are essential in transporting oxygen to all the cells in the body to serve their functions. The hemoglobin molecule in the red blood cell is the vehicle for the transportation of oxygen. Platelets are a part of the blood clotting system in the body and help in preventing bleeding.

Medically Reviewed by a Doctor on 1/24/2014

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Complete Blood Count - Diagnosis Question: What was your complete blood count (CBC) test used for?