I don't know if 'hand warmers' stay the same temp? I know a lot of heating pads do not! You may want to get a digital thermometer and experiment with different things. I am sure the answer will come in here. . . in the meantime, I'll just give you something to read when you could be reading threads from the expert residents here.

A urine test shows more than drugs. Like ch said, a microwave would change results. WE have lots of old threads on this topic and a lot of coaching of what to do. I am thinking I have read some really good ones a couple of years ago. But, the tests are evolving and you certainly need to figure out a 'substitute' and the best way to keep it at proper temp.

If this is a "Good Job", perhaps you may want to re-consider use? We do have some people that have done this very successfully and it seems the temp. is the biggest problem by having 'fake pee' everyday. One of the warmest places on the body is what you sit on (for a natural temp-be innovative, until you get a better response or read something as many threads as possible)! I am not sure you can keep the pee at a certain level without some sort of dependable device for sustained temp. Heating pads can fluctuate or just stop working. You would need a reliable one. I personally, from using them, have never had one that remained at a set temp. They may exist though!

What is the risk of a random test, anyway? Were you tested to get the job? Do you know of anyone that has had a random test? I wouldn't exactly go asking anyone, either. Unless, the topic comes up, off the cuff with another employee. You can jokingly ask 'if they do that?' Some employers only test if they are suspicious of someone and then they won't just pick on you or them! It would seem, you may have enough notice to get sick, go home and get what you need to bring the next day. I know I read that in a thread 2 years ago or so. By a member that was a former "testing" worker. I think I even read a lot about coughing and acting so sick, no one wants to get close to you.

I would start thinking of different scenarios of how and what to do. If you don't work with machinery or harming others: The odds may be small that it happens.

The bigger question is, which you already answered: don't need to lose a job "especially over weed!" Jobs are just too hard to come by right now. I wish we had a better system to avoid getting a positive test when you probably do your job better than others!

Read posts about this and then follow the member that has the advice that seems the best and read their posts and threads. You may find the answer was before you all the time. This can become a complicated matter and you need to arm yourself with a lot of facts. Off the cuff, over the years: Burnt Toast has a great deal of info out there and a few others seem to know a great deal of facts in this area. Hope you get an answer that is: Step 1, 2 and 3 and you are safe!

You've been here a long time, nice to see you posting! Good luck and don't screw it up! pr

Really do wish you good luck and hope you get some help on this topic! Take Care, I wouldn't want to quit either. Times were so much better before all this 'drug testing' bull. Guess, I need to be thankful for my age! pr