This is an adaptation of the Chinese kung-work, and ho-together. The Anglicized term gung ho became widely known in English as a slogan that was adopted in WWII by the United States Marines under General Evans Carlson. The New York Times Magazine reported this in 1942:
A white blood cell (WBC) scan is an imaging test that uses a radioactive material called a tracer. It looks for infection or inflammation in the body. It is a type of nuclear scan.
Summary. The complete blood cell count is the most commonly ordered hematologic screening test and commonly includes the white blood cell count, red blood cell count, hemoglobin level, hematocrit level, platelet count, and red blood cell indices.