mouth swab drug test

my girl is getting tested tomorrow for a new job and there doing the mouth swab. what all do they test for when doing this? just cannabis? or does it vary?
shes been drinking alot of water she cant sweat cause she got a broke toe and cant run. she last smoked 4 days ago and the test is tomorrow and shes been scrubbing her gums and cheeks wth tooth past and tonight shes gonna use peroxcide. what else can she do?
another thing would it be to risky for me to give her a little bit of a perk 10 to take some pain off her foot (she also just sliced it good on a piece of glass)

ive been searching all over for the answers but this computer is very small and it kills my eyes sqinting to read it.

Mouth swab tests, from my own experience-
*edit*- Brenton looked up the exact time (72 hours) for cannabis.
What they do is give you a swab on the end of a plastic handle and tell you to put it between your bottom gum and cheek and hold it there for 5 minutes. The swab tastes really salty/nasty.

I smoked the night before my swab test and still got hired. I didn't mean to be that dumb, but I thought it was going to be a urine test- I was ready for a urine test with someone else's pee and everything, turned out to be a swab test when I got there... WHOOPS! But for some reason I got hired, so either my employers didn't care or I passed the test. The only way I think I could have passed was if the 14 hour limit I found from one site was right, or if it was the fact that after about 4 minutes I took the swab out from between my gum and cheek (that's when I tasted how crappy it was! lol). If they don't watch you too close you could try taking it out early like that/not putting it in correctly. I also read that brushing the inside of your cheek and gums helps because the tests read the thc contained in your skin/fat cells on the inside of your cheek.

As far as giving your girl percs, if they aren't prescribed to her and she can manage without them I wouldn't give them to her, because the test might generally test for opiates and then she could be in a bad situation having to explain shit to her possible employer.

GL to your girl!

• Oral fluid or saliva testing results for the most part mimic that of blood. The only exception is THC. Oral fluid will likely detect THC from ingestion up to a maximum period of 18-24 hours
• Urine can not detect current drug use. It takes approximately 6-8 hours or more post-consumption for drug to be metabolized and excreted in urine. Similarly, hair requires two weeks, and sweat, seven days.

the CHEEK SWAB DRUG TEST can detect THC up to about 72 hours. by brushing your teeth, flossing and rinsing with listerine, the cheek cells and mouth should produce a clean test within 2-3 days...

They make a mouthwash you can buy at most headshops

wow, i can't believe that i haven't head about these till now... at the least the window for testing thc pos is shorter than that of urinalysis!