Specific radio procedures, codes, words or abbreviations are used to shorten messages
Scene Updates
Mobile
Mobile to incident
At Scene
At scene of incident
Leave Scene
Left scene
Arrive Destination
Arrived at destination
Clear
Clear at destination
Clear on scene
Clear on scene
VNR
Vehicle not required
Routine Updates
RTB
Return to Base
BAB
Back at Base
ETA
Estimated time of arrival
ETD
Estimated time of departure
Patient Updates
A Age
S Sex
H History
I Injuries/Illness
C Condition
E Extra help needed
or
M Major Incident Declared / Standby
E Exact Location
T Type
H Hazards present and potential
A Access and egress
N Numbers and types of casualties
E Emergency services on scene and required