[hannahd]

Thanks for the replies.

I'm now sorted with (b).

For (a) I just need to mention a specific guideline (e.g. NICE) and a situation where something was prescribed that is totally deviant from that guideline. Don't need to mention patient details except for other co-morbidities (if relevant). The tricky bit is that many of these guidelines have concessions for particular patients (as Jeff mentioned) and since this is in the guideline, it can't be used as an example!