Question: (Male, 34 years, 72 inches (183 cm), 190 pounds (86.2 kg) of average health) I used isopropyl alcohol on a XXXXXXX cloth to wipe a rash within the skin-fold/ cleavage of my buttocks at 8:30 this morning. I was in contact with the cloth for approximately 30 seconds, allowed the skin fold to return to natural position, and no other actions were taken. I do not consume ethyl alcohol in any form, and occasionally expose myself to the isopropyl as described. I have to submit a sample for urinalysis between now, and 1:45 this afternoon (at the latest) The test is for drugs, alcohol, and maybe GGT as well. Should I go sooner before any GGT levels change (if the levels even elevate that quickly), or should I go later after the alcohol itself has had a chance to disintegrate (if the amount I was exposed to even takes that long to leave the system), or do you believe there shouldn't be any problem. Any suggestions ?