A patient presents with neutrophilia of 40 × 10⁹/L with many circulating immature cells.The blood contains many bands,metamyelocytes,myelocytes,promyelocytes,and a rare blast.No nucleated erythrocytes are present.What disease state is most likely with these results?

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Neutrophilic leukemoid reaction is characterized by high numbers of immature neutrophils in the bloodstream, similar to that seen in leukemia. This can be caused by infections, inflammation, or malignancy, and is differentiated from leukemia by the absence of nucleated erythrocytes. Hypersensitivity reactions and tissue damage from burns may cause a leukocytosis, but not the presence of immature cells. Leukoerythroblastosis is characterized by the presence of nucleated erythrocytes and immature cells, which are not present in this case.

A Patient Presents with Neutrophilia of 40 × 10⁹/L with Many