Someone who isn't me (SWIM) is going to go to the small local health clinic to take an STD test that involves peeing in a cup. Then the sample is sent away for analysis and SWIM gets a call at a later date to inform of the results.
What SWIM is worried about is, if they were to smoke cigarettes the morning of the day the urine sample was taken, would the doctor also be informed of the presence of nicotine in the urine, therefore causing SWIM's health/life insurance rates to rise?