Question

What percentage of blasts is recommended by the French-American-British (FAB) classification system for a diagnosis of acute leukemia?

A) 30%
B) 50%
C) 20%
D) 10%
E) None of the above

Answer 1

C. 20%.

Step-by-step explanation:

Explanation: The FAB classification system uses blood-based morphology test to identify and classify immature cells in the bone marrow and for diagnoses of acute leukemia, the blood sample must contain at least 20% of nucleated cells.