Monday, December 29, 2014
Patient A took amphetamines five days ago.
Patient B ingested 2L of water right before providing a sample; he used cocaine several hours before.
Patient C takes rifampin, finished a course of ciprofloxacin for a UTI, eats poppy seeds, drinks quinine in tonic water, and takes LSD.
Patient D says he is a chronic pain patient who ran out of methadone. You do a more specific urine drug test that is positive for methadone but not for 2-ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine.
Challenge: What can you tell me about the tests for these patients and what they mean?
Image of opium field shown under Fair Use, from Wikipedia.