Methylphenidate (trade names Concerta, Methylin, Medikinet, Ritalin, Equasym XL, Quillivant XR, Metadate) is a central nervous system (CNS) stimulant of the phenethylamine and piperidine classes that is used in the treatment of attention deficit hyperactivity disorder (ADHD) and narcolepsy.
This test measures the amount of monocytes in blood. Monocytes are a type of white blood cell (WBC). This test is used to evaluate and manage blood disorders, certain problems with the immune system, and cancers, including monocytic leukemia[1].
Monocytes move to sites of infection and signal the immune system that a response is needed and are responsible for eliminating foreign substances. The absolute monocytes blood test measures the percentage of monocytes in relation to all white blood cells. A high level of monocytes could mean a number of things. They're a type of phagocyte - a type of cell found in your blood that 'eats' many types of attacking bacteria and other microorganisms when it matures.