The CBC can remain normal in some cases of leukemia, but this is less common. Whether it shows up first in the blood cannot be said for sure, as it can vary from patient to patient.
If leukemia is suspected, further evaluation - like a peripheral blood smear or bone marrow biopsy - should be considered by your hematologist.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Kevin, M.D.
www.kevinmd.com