The presence of polychromatophilic RBCs on a blood film suggest that there will be:
a. An increase in the reticulocyte count
b. Decreased production of RBCs in the bone marrow
c. Neutrophilia
d. Lymphopenia
ANS: A
Polychromatophilic RBCs are reticulocytes when they are stained with a supravital stain such as new methylene blue; thus their obvious presence suggests the reticulocyte count will be increased. They also suggest that enhanced bone marrow erythropoiesis exists. They have nothing to do with either neutrophils or lymphocytes.
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