The baby's first stool is what he's talking about. If the drug is still in the baby's system at the time of birth, it will also be in the first stool sample. Even just using 1 time can stay in the baby's system 30 days at least.
How Long Will Meth Stay In Meconium? A Friend Did It Thru Her Pregnancy And Tested Possitive For Pot And Doc Said They Would Test The Meconium When The Baby Was Born....