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Cd4 T-helper Cells

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CD4 Cell Tests

What Are CD4 Cells? Why Are CD4 Cells Important in HIV? What Is a CD4 Test? What Factors Influence a CD4 Cell Count? How Are the Test Results Reported? What Do the Numbers Mean? Ongoing Monitoring "Non-AIDS" Illness and Death The Bottom Line What Are CD4 Cells? CD4 cells are a type of lymphocyte (white blood cell). They are an important part of the immune system. CD4 cells are sometimes called T-cells. There are two main types of...
Ask the Experts
Mark Holodniy, M.D., F.A.C.P., C.I.C.

Response from Mark Holodniy, M.D., F.A.C.P., C.I.C.

Stanford University, School of Medicine
CD3 is a t cell marker. T helper cells are usually expressed as CD3CD4+ and t suppressor or cytotoxic cells are usually expressed as CD3CD8+.... Read more »

CD4 - CD4:CD8 - CD4 keeps going down and doc says don't worry. It will not do any good.

I am on atripla, since 10/19/2009. I have never missed a dose, my CD4 count went up for awhile and has been decreasing for the past year. (see lab results below.) The doctor I see is busy and really answers in very short nondescript answers. I...
Mark Holodniy, M.D., F.A.C.P., C.I.C.

Response from Mark Holodniy, M.D., F.A.C.P., C.I.C.

Stanford University, School of Medicine
I actually would agree with your doctor. Thanks for sending the detailed information. In general, your CD4 count has remained stable over the last 3 years at an average of around 276, although the CD4% has increased significantly (7% increase),... Read more »

Difference between CD4 percentage and CD4/CD3 percentage

Hello Dr MarkThanks in advance if you shed some light on my labs for me. My immunophenotype always has a CD4 percentage which I can see is a percentage of the lymphocyte count. However there is always another number that is labelled CD4/CD3...
Mark Holodniy, M.D., F.A.C.P., C.I.C.

Response from Mark Holodniy, M.D., F.A.C.P., C.I.C.

Stanford University, School of Medicine
CD3CD4 cells are t lymphocytes that are CD4+ helper cells. There can be other kinds of circulating cells that are CD4+ and might not be CD3CD4 cells.Both of those CD4 percentages are in the normal range. Although there is less variability for CD4%... Read more »

Cd4 and CD4/CD8 ratio

Dear Keith, I have been recently diagnosed HIV+ (June 02) and have some questions regarding both the CD4/CD8 ratio and CD4 which do not seem to be spoken about as much as the CD4 absolute.My first question is what exactly are CD8 cells? What happens...
Keith Henry, M.D.

Response from Keith Henry, M.D.

University of Minnesota, School of Medicine
The rate of fall in CD4 count is quite variable. The normal situation is that there are more helper cells than suppressor cells so the helper/suppressor ration (CD4/CD8) is greater than 1.0. With HIV infection there is a fall in the helper cell... Read more »
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Do anybody know about CD4 cells count?

Posted by Anonymous, 1 Reply
Hi guys,

I have a question about my tests - in fear of HIV infection because of a bad incident and symptoms not long after, I went to have my blood tested for HIV as well as other infections - the PCR and antibody test both turned out Negative, but... Read more »

cd4/cd8 ratio

Posted by Anonymous, 1 Reply
cd4 helper 1254 -57%
cd8 suppressor 517-23.5%
cd4/cd8 ratio 2.43
wbc 10.7 h
platelet 425 h
mono neg
checking for reativation of ebv because my herpe virus is so high but no outbreaks. would your cd4/cd8 ratio be high with hiv or low? if you don't mind me... Read more »

Unusual case. Ongoing Low CD4 - HIV possible?

Posted by Tryin2BRational, 4 Replies
I wrote awhile back outlining a one-time risky exposure in March 2006(unprotected vaginal sex) with a female of unknown status. I contacted her and she told me she did not have HIV, but I doubted her veracity (I had two consectutive rounds of... Read more »

What is a T-Cell or CD4 Count?

Posted by TheBody
What Is a T-Cell or CD4 Count?

Your T-cell count, also known as a CD4 count, reveals the number of T cells in your body. A T cell is a special kind of white blood cell, and the more you have, the stronger your immune system is. When you were infected... Read more »