8 definitions of MU. Definition of MU in Business & Finance. What does MU stand for?
A diagram showing different types of white blood cells, including monocytes. Monocytes can be counted as part of a diagnostic blood test. It's important for patients to discuss the results of their monocytes blood test with their doctor. Macrophages promote tissue growth and repair following an injury. Stress may cause a high monocyte count.
(For more on mono, see the What is being tested? section.) A mono test is frequently ordered along with a complete blood count (CBC). The CBC is used to determine whether the number of white blood cells (WBCs) is elevated and whether a significant number of reactive lymphocytes are present.