concussion
see also:
head injury in the adult patient
paediatric head injury
https://www.concussioninsport.gov.au/medical_practitioners
Abbreviated Westmead PTA Scale (A-WPTAS)
see
http://www.psy.mq.edu.au/pta/index.html
Motor Accident Authority of NSW - Traumatic Brain Injury
can be combined with GCS as an objective measure of post traumatic amnesia (PTA)
a patient is considered to be out of PTA when they score 18/18
should be used in conjuction with clinical judgement