Question An 18-year-old black male was suspected of having G6PD deficiency when he experienced hemolytic anemia after administration of primaquine Option. An erythrocyte G6PD analysis performed on blood taken 2 days after symptoms appeared was normal Option. A reticulocyte count revealed 12% reticulocytes at this time Option. These results suggest that:

a Option. the patient definitely does not have G6PD deficiency but could have pyruvate kinase deficiency

b Option. another G6PD test should be done in several months when the reticulocyte count returns to normal

c Option. leukocytes could be contaminating the sample, giving a false result

d Option. the patient probably has the G6PD-Mediterranean variant