See Also: daughter cell(medicine)
cell count(medicine)
b and t cell count(medicine)
CD4 cell count(medicine)
red blood cell count(medicine)
viable cell count(medicine)
total cell count(medicine)
blood cell count(medicine)
white blood cell count(medicine)
Differential white cell count(health)

daughter isotope (medicine) and CD4 cell count (medicine)


daughter isotope (medicine)


daughter isotope


An element produced by radioactive decay of another.

See: radionuclide generator, cow.


CD4 cell count (medicine)


CD4 cell count


The most commonly used surrogate marker for assessing the state of the immune system. As CD4 cell count declines, the risk of developing opportunistic infections increases. The normal range for CD4 cell counts is 500 to 1500 per cubic millimetre of blood. CD4 count should be rechecked at least every six to twelve months if CD4s are greater than 500/mm3. If the count is lower, testing every three months is advised.