AllRefer Health - T (Thymus Derived) Lymphocyte Count: Normal Values (CD3 Count, CD4 Count, T Cell Counts, T-Lymphocyte Count)

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You are here : AllRefer.com > Health > Tests & Exams > T (Thymus Derived) Lymphocyte Count: Normal Values

T (Thymus Derived) Lymphocyte Count


•	Definition
•	Why is the Test Performed?
•	How is the Test Performed?
•	How to Prepare for the Test?
•	How will the Test Feel?
•	Normal Values
•	What do Abnormal Results Mean?
•	Special Considerations
•	Risks
•	Pictures & Images
•	Go To Main Page

Alternate Names : CD3 Count, CD4 Count, T Cell Counts, T-Lymphocyte Count

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Normal Values

Lymphocytes make up 16-45% of white blood cells. Of those lymphocytes, about half are T cells, a quarter are B cells, and another quarter are natural killer cells.

Helper T-cells, also known as absolute CD4+ or T4 count: more than 400 per microliter, or 32-68% of lymphocytes
Suppressor T-cells, also known as absolute CD8+ or T8 count: 150-1000 per microliter

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• Definition
• Why is the Test Performed?
• How is the Test Performed?
• How to Prepare for the Test?
• How will the Test Feel?
• Normal Values
• What do Abnormal Results Mean?
• Special Considerations
• Risks
• Pictures & Images

Review Date : 1/5/2002
Reviewed By : Camille Kotton, M.D., Infectious Diseases Division, Massachusetts General Hospital and Brigham and Women's Hospital, Boston, MA. Review provided by VeriMed Healthcare Network.

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