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Different Reasons For A Cd4 Test

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AIDS InfoNet

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

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 »

Difference between CD4 and Percentage (CD4 count versus CD4%, 2011) (LACK OF CD4 RESPONSE DESPITE TREATMENT, 2011)

Could someone explain what exactly is the correlation between CD4 cells and percentage. I know what CD4 are but what does percentage mean. Also, I have been undetectable for 1 year now, my percentage has gone from 3 to 8 but cd4 rose to 320 from 130...
Robert J. Frascino, M.D.

Response from Robert J. Frascino, M.D.

The Robert James Frascino AIDS Foundation
Hi.This gets a bit confusing, but let me try to sort this out for you. A CD4 count is not a direct cell count of CD4 cells in your blood. Rather, it's a calculation based on the total white blood cell count and the proportion of those white... Read more »

CD4 counts vs CD4 percentage (ABSOLUTE CD4 COUNT VERSUS CD4%, 2008)

Dr. Frascino, I am a little new to dealing with HIV. I was diagnosed about 9 months ago. I was wondering what the CD4 percentage was. Because my CD4 count had changed from 510 to 409 in a three month period but the CD4 percentage had risen by 1%....
Robert J. Frascino, M.D.

Response from Robert J. Frascino, M.D.

The Robert James Frascino AIDS Foundation
Hey College Guy,I'll reprint below some information about absolute CD4 cell counts and CD4%. The CD4% is the more accurate test, as it is less susceptible to variations related to concurrent phenomena (diurnal variation, other infections, etc.)... Read more »

Why CD4 goes down while CD4% goes up (ABSOLUTE CD4 COUNT VERSUS CD4%, 2009)

Hi Dr. Bob, it is a real pleasure to read your answers full of help, professionalism, generosity and fun. I started therapy at an absolute CD4 of 405 and 26% and VL above 100k, I started Atripla six months ago after the first three months my CD4...
Robert J. Frascino, M.D.

Response from Robert J. Frascino, M.D.

The Robert James Frascino AIDS Foundation
Hi,When it comes to monitoring HIV disease, it's important to look for long-term trends rather than worry about transient swings, especially in absolute CD4 counts. Absolute CD4 counts are calculated from the absolute lymphocyte counts. The... Read more »
Connect With Others

cd4

Posted by chucky, 2 Replies
i was diagnosed back in june 2003 with a cd4 of 40 and i started meds a few months later the ones i'm taking now are sustiva and truvada in feb 2006 my blood was drawn again and my viral load was <50 and cd4 was 74 wow! made me smile, so then in... Read more »

Increasing CD4 count

Posted by PeaceandLove, 4 Replies
Hello everyone,
I usually come on here and offer support and advice, and now I'm looking for some. I got my labs back and for the second time in a row by CD4 dropped. I've chosen not to know the number but from pestering my partner and getting hints,... Read more »

To Jackie Blue - Re CD4 depletion

Posted by Anonymous, 2 Replies
Dear Jackie - thanks for replying to my post. I wanted to respond so I could answer some of your questions.

Firstly - how do I know it is not cancer - I don't - all i know is that exactly 20 days after an unprotected sexual exposure I came down with... Read more »

A 30 Day Miracle. CD4 goes from 160 to 500!

Posted by CLT, 3 Replies
All praises go to GOD. I had to let the world know the good news. I started Atripla (coupled with my faith in God and prayer) 30 days ago and my CD4 count went from 160 (which by right is full blown AIDS) to 500 in a matter of 30 days. I couldnt... Read more »