I'm not sure if 2 days is long enough to have everything converted to morphine
. I'm fairly certain they can only detect 6-MAM (the metabolite that tells them you took Heroin
& not something else) for about 12 hours after use. I'm not sure what codeine
metabolites might show up (if any) that could distinguish it from morphine.
But, if she has a 'script for codeine cough syrup, I'd totally take that route & say it must have been that.
Back when my clinic had urine screens (we have oral swabs now), they'd be sent out to a lab & get generically "dipstick" tested. If you were on takehomes & came up dirty, they would then send it for further, confirmatory testing before sending the results back to the clinic. Our lab slips still actually have 2 separate areas, the top is the order sheet if you don't have takehomes, and the bottom is the order sheet if you do, which has a checkbox marked that says to give it confirmatory testing if it were to come back positive. So, I guess the oral swabs might have "generic" & "confirmatory" testing as well.
If she can swing with the codeine angle, she might get lucky & they won't send for confirmatory testing. Then again, it might have already been done.
Funny side note: my friend who is on the clinic, is trying to get her takehome doses. She just recently had some dental work done & got a small amount of Percocet (oxycodone
/APAP mix tablet). It was written "as needed" & had 14 tablets but somehow was put into the system as being a 30 day prescription. She got her oral swab & it came back clean for everything except methadone
...and they marked her as "dirty"!! Why? Because she *DIDN'T* have her prescribed Percocet show up! *facepalm* They're trying to straighten it out, though. But how f'd up is THAT?