7 DSP/NO THC/PHN This is the code employed for a urine drug test, does this imply it will not test for Marijuana? April 29, 2019 My pal has a drug test with the label 7DSP/NO THC/PHN. She smokes fairly regularly. I know the 7 DSP indicates 7 panel drug screen, but does NO THC imply they won’t test for marijuana? submitted by /u/savetheworld420 [comments] [ad_2]