I have worked in several hospitals where urine and meconium are tested for drugs of abuse. Depending on the test the turn around time can be 24-48 hours. I have never worked in a place where breast milk is tested. Also keep in mind that alcohol and nicotine are not routinely tested- two substances one would prefer a breastfeeding infant not ingest. Keep in mind that a postive test gives you only that a drug has been recently ingested. It is not an indicator of past or future use or if you have a chemically dependent mom. That is where it is important to have trained personel in chemical dependency to interview the family and do followup. Ideally mom has already been connected to a prenatal program for chemical dependency. I will be attending a state wide conference on chemical dependency treatment for women and their families in Asilomar this week. If I obtain any additional info I can pass it on if anyone is interested via private email. Pierrette Mimi Poinsett MD FAAP steering committee member Stanislaus County Perinatal Substance Abuse Coalition.