Benign prostatic hyperplasia (BPH), also called benign enlargement of the prostate (BEP or BPE), is a noncancerous increase in size of the prostate. BPH involves hyperplasia of prostatic stromal and epithelial cells, resulting in the formation of large, fairly discrete nodules in the transition zone of the prostate. When sufficiently large, the nodules impinge on the urethra and increase resistance to flow of urine from the bladder.
Cocaine. 1  Cocaine is used as a topical anesthetic; a patient's urine may test positive for benzoylecgonine, cocaine's metabolite for up to 2-3 days following a procedure. In the absence of a medical explanation, a positive UDT for cocaine's metabolite should be interpreted as deliberate use.
L-Urobilin or Stercobilin is a byproduct of bilirubin degradation. It is a tetrapyrrole chemical compound, responsible for the typical brown color of human feces.In urine, it is responsible for the yellow color of human urine.It is created by bacterial action on bilirubin and subsequent oxidation.-Urobilin or Stercobilin is a byproduct of bilirubin degradation. It is a tetrapyrrole chemical compound, responsible for the typical brown color of human feces.