Which of the following is used to quantitate the number of hematopoietic stem cells collected?

Question

Quizplus · Accepted Answer

CD34 quantitation by immunophenotyping is commonly used to quantitate the number of hematopoietic stem cells collected. CD34 is a marker present on early hematopoietic stem cells, and quantifying the number of CD34+ cells can give an estimate of the total number of stem cells collected. The other options listed (chimerism study, ratio of neutrophils to lymphocytes, cytochemical study) do not directly measure the number of stem cells collected.

Which of the Following Is Used to Quantitate the Number