What is the normal range for CD4 counts in an otherwise healthy individual?

The normal range for CD4 counts in an otherwise healthy individual is typically between 500 and 1500 cells/mm³. CD4 cells are a type of white blood cell that plays a significant role in the immune system, particularly in fighting off infections.

In healthy individuals, the count can vary based on a variety of factors including age, sex, and individual health conditions, but a resting range of 500 to 1500 cells/mm³ is considered standard for most healthy adults. This range is used clinically to assess immune function, especially in individuals at risk for HIV or other immunocompromising conditions. A CD4 count below this range can indicate an increased risk for opportunistic infections, which is particularly significant in the context of HIV/AIDS. Understanding this range is crucial for monitoring patients and making treatment decisions regarding conditions that may influence immune health.