Ds is will go under sedation (MRI on brain) appt is at 12 for the scan we need to arrive at the hospital 2 hours earlier, it's NIL by mouth solids 6 hour, milk 4 hours, liquid 2 hours, question, is it based on the time we arrive or the appointment time? Ideally I'd like to give him milk when he wakes between 7-8, i'll double check with the hospital but in the meantime anyone know? Thanks