Shifting to the left (proportion of immature neutrophil cells >5%)may occasionally be caused by all the following EXCEP

(E). Higher degrees of left shift with more immature neutrophil precursors are indicative of serious bacterial infections and may be a direct sign of depletion of the bone marrow reserve pool of neutrophils. Marked left shift may occasionally be encountered with trauma, burns, surgery, acute hemolysis, or hemorrhage