Can a person fail a urine drug test from second hand crack smoke?
Even if they can’t, stop wasting time being around people smoking crack. It’ll do you no good at all. It’s unlikely that second hand crack smoke will be picked up but it really isn’t what’s important here.
Six healthy male volunteers were exposed to the vapor of 100 and 200 mg freebase cocaine heated to a temperature of 200 degrees C in an unventilated room (12,600-L volume) for a period of 1 h.
No pharmacological effects were detected as a result of the exposure. Blood specimens collected immediately following exposure were negative for cocaine and metabolites. Urine specimens analyzed by gas chromatography-mass spectrometry contained peak concentrations of benzoylecgonine that ranged from 22 to 123 ng/ml.
The peak excretion time for benzoylecgonine following passive exposure was approximately 5 h. The amount of cocaine inhaled by the subjects during passive exposure was estimated from room air measurements of cocaine to be approximately 0.25 mg.
The total amount of cocaine (cocaine plus metabolites) excreted in urine by the six subjects ranged from 0.04 to 0.21 mg. For comparison, the six subjects also received an intravenous injection of 1 mg cocaine hydrochloride.
Four of six subjects screened positive (300-ng/ml cutoff concentration) following the injection, indicating that the minimum amount of cocaine in these subjects necessary to produce positive results was approximately 1 mg.
A second passive inhalation study was undertaken in which specimens were collected from research staff who assisted in a series of experimental studies with “crack” (freebase cocaine) smokers. The research staff remained in close vicinity while the crack smokers smoked three doses of freebase cocaine (12.5, 25, and 50 mg) over a period of 4 h. As a result, staff members were passively exposed to side-stream smoke from crack pipes and to breath exhalation from the crack smokers.
Urine specimens from the staff members contained a maximum of 6 ng/mL benzoylecgonine. Only traces (less than 1 ng/ml) of cocaine were detected in any specimen. Overall, these studies demonstrated that individuals exposed to cocaine smoke under naturalistic or artificial conditions absorbed small amounts of cocaine that were insufficient to produce positive urine specimens at standard Department of Health and Human Services cutoffs.
However, passive exposure conditions that would result in absorption of cocaine in amounts exceeding 1 mg could result in the production of cocaine-positive urine specimens.
A lot of drug tests are not only to see if you use drugs. But to see if you come in contact with them. They can tell by the amount in your system. A very low amount will show you are either around illegal drug use or a casual user yourself. It shows a lot about your character and the type of people you associate with. A lot of employers will look at that as being as bad as using it yourself.