HIV, AIDS, and the CD4 Count
Factors That Can Affect Your CD4 Count
You should know that other factors can influence how high or low your CD4 count is.
- CD4 counts tend to be lower in the morning and higher in the evening.
- Acute illnesses such as pneumonia, influenza, or herpes simplex virus infection can cause CD4 counts to go down for a while.
- If you have a vaccination or when your body starts to fight an infection, your CD4 counts can go up or down.
- Cancer chemotherapy can cause CD4 counts to go way down.
- Fatigue and stress can also affect test results.
For these reasons:
- Try to use the same lab each time.
- Have your tests done at the same time of day each time.
- Wait for at least a couple of weeks after an infection or vaccination before getting a CD count test.