What does CRT mean on a urine screen?

Answer 1

CRT on a urine screen typically refers to creatinine, which is a waste product produced by muscles from the breakdown of creatine. It is often measured to assess kidney function and to ensure that the urine sample is valid, as abnormal creatinine levels can indicate dilution or tampering of the sample. In drug screening, a normal creatinine level helps confirm the integrity of the urine sample.