Yeah pickup a thc strip or 2 and test yourself.
If you sub go to a dollar store or some cheap store and pickup up a small 2 or 3 ounce bottle of travel shampoo or something of the sort and put the urine in that. Make sure the bottle gets well flushed first. You'll need a digital thermometer to check how your doing on temp. Nuke it for 10 seconds and test it. 90 to 100 dgrees is fine. Somewhere in the middle is perfect. Take the thermometer with you to test temp just before you go in.
If you get in and the temp is a little high blow on it,if its a little low rub your thumb briskly on your clothing and place your thumb on the temp strip on the side of the UA cup to warm the strip a little.