What should your DD be doing for the next 4 terms to get into med school?
Work at getting the best GCSE grades she can and continuing the extra-curriculars she's already doing.
What should you be doing?
Exactly what you are doing - asking around, doing some reaearch and encouraging her. The Student Room is very useful for info - and very addictive.
UKCAT is the UK Clinical Aptitude Test. It's computerised, lasts about an hour and costs you £75. Someone is getting very rich off the back of this one. It was done here in the same seedy office that DD took her driving theory test in. School doesn't tutor.
Candidates practise for this and so the average mark keeps rising year on year. Some med schools don't require it, some use it as a weeding out tool and some use it as a tie breaker.
It's usually done in the late summer before Y13.
BMAT is another aptitude test but more mathsy/sciencey. It's horrendous and, again, you fork out a fee. This one is a sit down, pen and paper exam done in an exam centre, probably the school, but don't expect school to tutor. You can get past papers.
Only a very few med schools require BMAT so don't panic about it.
The problem with it is that they take it after they have submitted their UCAS forms so there's no way of telling whether they will pass high enough for the unis they applied to. DD took a risk in applying to two BMAT schools. If she hadn't got at least average marks in all three sections she would have lost 50% of her choices. (You can only apply for 4 med schools on a UCAS form.)
Worry about the personal statement and interviews further down the line!
There are about 30 med schools in the UK so have a look at the list on TSR (The Student Room) and think about where she would like to live for 5 or 6 years. Check where they actually do the clinical part of the course. She might fancy living in York and find she's actually in Hull. (Nothing against Hull!)
Check the entry requirements and selection proceedures in the prospectus and how the course is taught. PBL is Problem Based learning. Most courses contain some PBL and some contain a lot. Some students don't like PBL because they feel abandoned to their own devices. Some love it.
Most of this you don't need to know yet and you can always get advice at each stage.
My DD was a back-runner and succeeded. Yours can too.