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Dictionary of Cancer Terms

View in Spanish: Frotis de sangre periférica

Peripheral blood smear (peh-RIH-feh-rul blud smeer)
A procedure in which a sample of blood is viewed under a microscope to count different circulating blood cells (red blood cells, white blood cells, platelets, etc.) and see whether the cells look normal.

Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.