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Definition Of Cd4

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CD4 (T-Cell) Tests

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 CD4 cells. T-4 cells , also called CD4+, are "helper" cells. They lead the attack against infections. T-8 cells (CD8+) are "suppressor" cells that end the immune response. CD8 cells can also be "killer" cells that kill cancer cells and cells infected...
Ask the Experts

Chemo and CD-4 counts (HIV VERSUS AIDS DIAGNOSIS DEFINITION 2009)

I am a HIV+ 37 year old male who is very healthy except for fighting KS in my colon and stomach. I have been undergoing Taxol treatment for my KS since Dec 08 until now June 1, 09. My oncologist and I decided to take a break till Mid-July because my...
Robert J. Frascino, M.D.

Response from Robert J. Frascino, M.D.

The Robert James Frascino AIDS Foundation
Hi,You seem to be most worried about the diagnosis of AIDS because your CD4 count has dropped below 200. Actually you qualified for the AIDS diagnosis when your Kaposi's sarcoma (KS) was first diagnosed (even though your CD4 count was 450). KS... Read more »

Does 13% CD4 (< 14%) give me an AIDS diagnosis? (HIV VERSUS AIDS DIAGNOSIS DEFINITION 2009)

This site has really been my best source of information and education and for that I am very grateful...Thank you! I've recently been diagnosed with HIV and I can't seem to get my head around the numbers and what they mean? From what I...
Robert J. Frascino, M.D.

Response from Robert J. Frascino, M.D.

The Robert James Frascino AIDS Foundation
Hello,A CD4% less than 14% is an AIDS-qualifying condition, even if the absolute CD4 count is still above 200. Consequently yes, you do have AIDS. Does it make any difference? No, not really. HIV disease comprises a spectrum from the early, often... Read more »

CD4 Count V. CD4% Count (ABSOLUTE CD4 COUNT VERSUS CD4%, 2010) (WHEN TO START TREATMENT, 2010)

Hi,I was diagnosed with HIV around 15 months ago. Since then my health has been good (especially in the last six months) but my CD4 count has fallen a bit rapidly from 470 to 371 to 324 over this time period. However, my CD4 percentage count has...
Robert J. Frascino, M.D.

Response from Robert J. Frascino, M.D.

The Robert James Frascino AIDS Foundation
Hello,You are correct: The CD4% is generally considered the more accurate indicator of immune integrity, as it doesn't tend to fluctuate as much due to intercurrent illnesses and other non-HIV-related factors. (See below.)Regarding beginning... Read more »

CD4, CD4% Changes Over Time

Dear Dr. Holodniy,I have been reviewing the information posted on The Body web page about CD4 counts and VL and have a few questions. I hope you can help me because I find contradictory evidence among the questions posted in the forums.1. What is...
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
1. The average loss of CD4 count is around 50-70 per year, and the percent loss is around 3% per year. Your are correct in your other assumptions.2. Viral load can be undetectable without treatment. The CD4 count/percent can increase, but this... Read more »
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Finally got my CD4 back

Posted by dj1979, 6 Replies
My doctor's office finally tracked down my "missing" CD4 from when I had my labs done 5/15. As I said in another post, my viral load was undetectable for the first time. Even better news - my CD4 is up to 505 - it had fallen to 222 and I started... Read more »

CD4+Tcell count indicative of nothing.

Posted by TonyF, 4 Replies
This, rather than being a myth the public promotes, could be considered a myth that the medical establishment promotes. We are led to believe that our bi-yearly doctor checkup of our CD4+Tcell count is a good baseline determination of where we... Read more »

HELP !! CD4 170 AIDS DIAGNOSIS-- IS THIS THE END?

Posted by Anonymous, 7 Replies
I have been positive and healthy on no meds for the last 8 years. Now my cd4 count which was about 600 is down to 170 and my once undetectable viral load is now detectable. What's the average timeframe a person survives after an AIDS diagnosis ? I... Read more »

Testing methods abd CD4 count question.

Posted by yoshimi2, 1 Reply
I am going to have another test next week. But here in Ireland the only tests available are ag/ab blood analysis. They only do a PCR test if they find a positive result from the initial test. I dont know what to do. I feel so restricted. And I... Read more »