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THE TRAUMA AUDIT AND RESEARCH NETWORK
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Glossary
AIS
Abbreviated Injury Scale score. A value between 1 (minor) and 6 (fatal) is assigned to each
injury.
AIS 3+
Injuries with an AIS severity score of 3 or more.
Child
A patient under the age of 16 years
Definitive Airway
Management
Intubation, cricothyroidotomy or tracheostomy.
Direct admissions
Describes care in the first treating hospital.
GCS
Glasgow Coma Scale. A measure of consciousness ranging from 3, indicating complete uncon-
sciousness, to 15, indicating a state of normal alertness. GCS is composed of eye, verbal and
motor scores.
HDU
High Dependency Unit
HES
Hospital Episode Statistics. Data collected in hospitals on all admissions.These data are used to
produce an expected number of eligible patients that should be submitted to TARN.
ICU
Intensive Care Unit
ISS
Injury Severity Score. A score ranging from 1, (minor) to 75 (severe injuries that are likely to
result in death). An ISS between 9 and 15 is considered moderate. An ISS of 16 or more is
considered severe. ISS is calculated using the Abbreviated Injury Scale (AIS).
LOS
Length of Stay. Calculated from the date of admission to hospital/ICU/HDU to the date of
discharge from hospital/ICU/HDU.
MTC
Major Trauma Centre
NAI
Non-Accidental Injury
Polytrauma
AIS 3+ injuries in more than one body region.
TARN
The Trauma Audit & Research Network.
TARNlet
The TARNlet committee, consisting of clinicians, managers and academics who focus on injured
children, was established to address specific questions relating to paediatric trauma care.
TU
Trauma Unit
Grades of Doctor
Consultant
Consultant
Associate Specialist
Associate Specialist
ST3 and above
Specialist Registrar, Speciality Trainee, Clinical Fellow, Senior Registrar, Staff Grade
FY / ST 1-2
FoundationYear / Speciality Trainee 1-2 / Trust Grade
Other / Not recorded
Not known / recorded, Nurse Consultant,Advanced Practitioner