a. Viewing a prepared slide of a blood smear with a brightfield microscope, you visualize relatively few large stained cells that contain a rounded nucleus. Upon closer inspection, you note the lack of granules in the cytoplasm. What type of blood cell are you most likely viewing based upon this description?
b. You would look for which type(s) of immune cell in a blood sample for the (1) Diagnosis of a parasitic helminth infection; and (2) Diagnosis of an allergic reaction?