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What is the likelihood of SWIM having false positive for amphetamine use because pseudoephedrine use? (Keep in mind pseudoephedrine is highly soluble in water and SWIM drank excessive amounts of water the previous night.)
As far as the other drugs are concerned, theyre off-topic. Only cannabis can be discussed here.

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Burnt Toast Reviewed by Burnt Toast on . Surprise RIA & GC/MS test. Hi all. The other day SWIM came face to face with some shit. SWIM was given a surprise RIA with GC/MS confirmatory results urine screen! Before SWIM go any further SWIM will let you know about SWIMs previous urine screen experiences. SWIM is very active and does cardio and lifts weights almost everyday, except for the last week SWIM has been slacking. Swim is roughly 180lbs 5'10" and 14-17% body fat. The last meal SWIM ate was at lunch time the previous day. SWIM ate fish and Rating: 5