tric I understand feeling concerned, worry, anger etc. But by having such an extreme reaction all your dd would learn would be to hide three things from you. And it's making a lot of conflict, which isn't necessary. As for the hospital - I understand the idea but to a young person death etc seems so far removed from reality.
The NA thing, well it depends how it works. There's a guy at a meeting I go to who brought his 15yr old daughter. The guy. Is 7yrs clean, and his daughter had been using drugs etc. The reason he brought her wasn't an attempt to warn her off - it was to show her that there was support there if she wanted it. And as an addict himself he knew the signs. He said that her use was recreational and she can put it down for now - but he's trying to work with her, to understand why it's happening, so hopefully she will either stop completely or just continue to use recdeatilnally. Doing it in that way - not making a fuss and being calm and reasonable about the using, and rather than shout or scream, show her there's support available - is fantastic and I wish my dad was understanding as hers clearly is.
However, taking her to a meeting so she could see what they do to people isn't going to be helpful. It isn't easy to identify in NA meetings, partly because you're looking for differences. Also because I doubt the dd would have a low anything like most in the room. I was a heavily addicted opiate addict, on 40pljs dihydrocodeine a day (you're meant to take 4 a day max), was stealing mams jewellery and getting loans to feed my habit.
I still couldn't really identify when I first came in. Because for most, their rock bottoms includes homelessness, jail, police, hospital, rehab, overdoses, fights, relationship breakdowns, bankruptcy, abscesses, pneumonia, jaundice... They're extreme but they're common in NA.. And if you're 17 and sat in a room like that you're going to be thinking how different you are.