AllRefer Health - T (Thymus Derived) Lymphocyte Count: Special Considerations (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: Special Considerations

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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Special Considerations

This test can be affected by:

Stress
Surgery
Chemotherapy medications
Corticosteroids
Immunosuppressive medications
X-rays

A flow cytometric measurement is more accurate than manual counts.

People with decreased T lymphocytes may not react to diagnostic skin tests.

Veins and arteries vary in size from one patient to another and from one side of the body to the other. Obtaining a blood sample from some people may be more difficult than from others.

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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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