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.
The white blood cell count is part of a complete blood count (CBC), one of the most common blood tests. Automated cell counting machines count the number of cells present in a blood sample. Different laboratories use different cell counting machines, and each lab may have slightly different values for the normal range.