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].
A monocyte is one type of white blood cell. In reporting the number of each type of cell in a blood test, you can either do it as a percentage of the whole or as an actual count (per unit volume). These two figures are called the relative and absolute counts.