Thats it. As long as you know your brothers urine is clean you have everything you need. My only advice would be, quick fix would be better from a smoke shop in your area and make sure the thermometer doesn't beep. People have used the baby stick on thermometers sold in drug stores by just attaching them to the side of the bottle.

Keep the sample refrigerated until you use it if you get it today. Forget the flushing products because they are hit or miss. Good luck and please post the good news when you get it.