A thymocyte-derived lymphocyte of immunologic importance that is responsible for cell-mediated immunity. These cells have the characteristic T3 surface marker and may be further divided into subsets according to function, such as helper, suppressor, and cytotoxic. See also: B lymphocyte. Synonym(s): T cell.
2 How long doe flexeril take to be out of system for urine test? 90 hours.: The drug has a half-life of 18 hours, which means it will probably stay active in your body for 90 hours. Therefore, it will show up on drug tests for 3.75 days after you have taken it, but this time period may vary by individual.
Cocaine Urine Drug Test. In order to know as for how long does cocaine stay in the urine one must undergo a urine test for cocaine which detects the slightest presence of cocaine in the urine. In fact the urine drug test detection times depends on the mode of intake of the drug. In case of snorting cocaine, it can be detected within 4-10 hours. In other cases such as cocaine injection, one can detect cocaine compounds in the urine even after 20 hours of intake.