I touched my ua drug screen with my finger tip to get a hair out, will that effect my results in the lab?

If your hand was clean and did not have any drugs on it, would not affect the results of a drug test. Have a healthy diet, exercise 30 minutes/day, drink plenty of water daily so your urine is mostly colorless, have safe sex, no tobacco alcohol weed or street drugs. For nutrition: http://www.choosemyplate.gov/. Get HPV and Covid vaccines. Wish you good health!