LT8R said:
An arrest will always appear on your arrest record, even if charges are dismissed.
this is true; but i don't think most schools are digging quite this deep for admissions checks.
to the op, there is a record of your arrest somewhere out there. i doubt if med schools will pick it up, but it may be found down the road when applying for you DEA license. Because it happened when you were a juvi, it's hard to say if the records are sealed or not; it probably depends on laws of the state where the incident happened.
but just because people may found out doesn't mean that you're screwed. you were 16 and throwing eggs. as long as you've stayed out of trouble since then, this won't be a problem. the absolute worst thing you could do is lie about it. if you're honest and upfront, you probably won't even be ask about it. however, if you lie about it, and the adcoms find out you're basically up **** creek with no way out.
let me say that again. DO NOT, under any circumstances, go out of your way to hide this incident from the adcoms. if you do and they find out you will likely be dropped from the applicant pool; if they were to find out after admitting you, there is a good chance you would be dropped from the class. covering it up is absolutely not an option.
the tricky part comes when you're filling out all those applications that ask the question about past criminal history with slighty different wording. if the question ask "have you ever been arrested," then you need to put yes. if it ask have you ever been convicted, you can put no. if it ask have you ever been charged, you should call the school and ask. most likely you will not have to say you've been charged, but keep in mind that if you do have to say you've been charged on an application, there is a section for explaining the incident, which you could do and not have to worry about anymore.
i'm not sure what the primary app from AMCAS ask, i'm a little far removed form applying to remember. but the question will be a little different on secondaries.
good luck.