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A.
The CD4 cell or helper T-lymphocyte is the primary target of the human immunodeficiency virus and its number in blood declines as the disease progresses. The cell is involved in immune function and its count is a measure of how strong our immune system is. Normal CD4 counts in males range from about 500 to 1500 cells/ml. The CD4 count along with the viral load (level of HIV in blood) is used to stage the disease, predict complications and decide treatment. Serial CD4 counts help in predicting the outlook of the disease and treatment is usually started when the count falls to 200 cells or less. A single value of CD4 is not very revealing but counts over a period of time are important. CD4 levels tend to be lower in the morning as compared to evening and the counts may fall in acute infections and intake of certain drugs. A declining count over several months will determine therapeutic decisions. Please get you counts done every 6 months along with the viral load as that will help in correlating with your clinical profile.
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