The body requires ________ different amino acids

An immunoglobulin (Ig) gene rearrangement can be identified in all of the following acute lymphoblastic leukemias except:

a. Pro-B b. Common ALL c. Pre-B d. Precursor T

An instrument printout reports a platelet count of 85 ? 109/L. The technologist reviewing the peripheral blood smears notices aggregates of platelets around many of the neutrophils. What is the best way to correct this problem?

a. Warm the specimen for 10 minutes at 45 °C and rerun the sample b. Centrifuge and rerun the sample c. Remake the smear and use alkaline buffer to stain the slide d. Redraw the sample in sodium citrate and repeat the platelet count