If mom quit using cocaine while 6 months pregnant nd she is drug test at delivery she show.up clean nd bby will they still test plancenta?

Depends: If there is suspicion of exposure the initial testing is done on the urine. That would certainly be clear if you abstain for months. Another common test material is the poo, which can hold onto the metabolites of Cocaine or other drugs for weeks to months. I've never heard of testing the placenta.Stay clean or you could deliver prematurely & increase the danger & level of scrutiny.