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.
A complete blood count (CBC) is a blood test used to measure and evaluate cells that circulate in the blood. The test includes an actual counting of red and white blood cells as well as an analysis of cells viewed on a blood smear. A CBC may be useful as a screening test for underlying infection, anemia and illness.