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.
Best Answer: If you use crack/cocaine once it will stay in your system for different time in different organs. A number of factors can affect these figures, such as the strength and quantity you consume; how often you use and what other drugs you use; your tolerance; and your sex, age, health and metabolism.abitual or chronic use can be detected in urine for up to 12 weeks depending on quantity, duration, and frequency of use. A user's hair can have crack/ cocaine traces for many years since it depends on the length of your hair. However the hair follicle drug test is standardized to a 90 day history only.