Which of the following laboratory results strongly suggests a diagnosis of leukemia?

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Finding of blast cells in the peripheral blood smear is a strong indication of leukemia. Blast cells are immature white blood cells that are typically found in leukemia patients. An increased complete blood count or increased serum calcium can also be seen in leukemia, but they are not specific enough to make a diagnosis. A normal complete blood count does not rule out leukemia.

Which of the Following Laboratory Results Strongly Suggests a Diagnosis