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) that measures the number of white blood cells (WBCs), red blood cells and platelets in the patient's sample of blood should be routinely monitored in CML patients. There are actually five kinds of white blood cells, each with a different function.