Flow Cytometry Activity

Question 4

Which flow diagram has a distinct population of CD4+ cells?

Patient 2

CORRECT!
Patient 2 is the one who is infected with HIV. Although measuring CD4/CD8 ratios by flow cytometry is not diagnostic for HIV infection, there were only two choices in this problem: HIV+ and HIV-.

If one wanted to confirm HIV positivity, what tests would one run?

Immunological Techniques
University of Arizona
Monday, October 6, 2008
douglas.lake@asu.edu