Well, here's a small update. The tests came in today, but my mom is out of town until Friday, so I'm very sure the tests won't happen until after then.

Substitution sounds good, but like I said, I don't know exactly when the tests will happen, but I don't want to buy the Quick Fix, and from reading I've learned piss starts to stink like crazy in about 8 hours.

I've also read adding a little bit of bleach to the test will make it turn up negative. The tests don't say anything about a pH level tester in the kit on the site, so I don't think they have one. How much bleach would I need to add to the pee to make it turn up negative?