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.
How long does fentanyl stay in your system? If you look into the half life of fentanyl, it is up to 7 hours. That means that in the urine test it would be present for up to 48 hours and after 48 hours it would not be detected through the urine test. If youâre detecting it through the blood is then it would be present for up to 12-16 hours. If youâre speaking about the saliva test then it would be lasting again for 48 hours. The problem arises when you are asked for a hair follicle test in which it can last up to 90 days under certain circumstances.