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.
The urine test is based on detection of 11-nor-delta-9-tetrahydrocannabinol-9-carboxylic acid (9-carboxy-THC), a metabolite of delta-9-THC, which is the primary pharmacologically active component of marijuana.