Question Immunologic phenotyping of blast cells is important to:

Question a Option. help determine cell lineage

b Option. identify the leukemias etiology

c Option. determine whether cytogenetic analysis is necessary

d Option. replace the need to do multiple cytochemical stains The minimum percentage of blast cells required for a diagnosis of acute myeloid leukemia using the WHO classification is:

a Option. 50%

b Option. 40%

c Option. 30%

d Option. 20%