MONITORING TREATMENT -  Urine Drug Testing
Validating Urine Samples

  • Always check the temperature.
  • If it looks like water and is at room temperature then it probably is water.
  • Consider checking the creatinine level when in doubt
  • Patients on prescription medications already have a signature to their urine which is difficult to duplicate (i.e. to fake a urine requires the patient to locate urine with the correct combination of prescribed medications and no illegal drugs and the patient must deliver that urine at body temperature).
  • Unexpectedly high urine levels of a medication are indicative of the attempt to submit a false, positive sample.
EMIT Drugs of Abuse Urine Assays Cross Reactivity List
Dr. Jeffrey Fudin also gave a nice presentation on urine drug testing at Pain Week 2016