Higher CD4 in the afternoon??
Dec 13, 2004
Hello... I've run across a couple of studies & papers that seem to suggest that a CD4 count can be as much as twice as high if taken later in the afternoon, after a full night's rest. Is this something you have encountered & does it have any significance?
Also, is the ratio or percentage of cd4 cells a more important marker of immune function than the cd4 total alone?
Response from Dr. Holodniy
That observation is correct and I have also published on this fact. This is a normal process. It can affect the interpretation of CD4 counts if the test is ordered in the morning one time and the afternoon on the next visit. The CD4 percentage is usually a more stable number over time. I am not sure one can state definitively that one value is more important than the other.
Get Email Notifications When This Forum Updates or Subscribe With RSS
- Touched Something With Wet Blood On It Hiv Risk
- Risk Of Hep C Or Aids Through Accidental Needle Stick
- Anxiety Of Thinking You Have Can Cause Hiv Symptoms
- How Do Doctors Determine How Long Someone Has Had Hiv?
- How Long Does It Take Thrush To Clear Up?
- What Does A Hiv Needle Poke Look Like?
This forum is designed for educational purposes only, and experts are not rendering medical, mental health, legal or other professional advice or services. If you have or suspect you may have a medical, mental health, legal or other problem that requires advice, consult your own caregiver, attorney or other qualified professional.
Experts appearing on this page are independent and are solely responsible for editing and fact-checking their material. Neither TheBody.com nor any advertiser is the publisher or speaker of posted visitors' questions or the experts' material.