WEEK 1 Flashcards
(36 cards)
INJURY
Occurs when an external source of energy dissipates more rapidly than the body’s ability to tolerate it.
ENERGY SOURCES
Energy sources includes kinetic, chemical, electrical thermal and radiation sources
NATURE OF INJURY
Causes of injury may be accidental or intentional (struck by an object, cut by a knife, falls, exposure to fire or toxic chemicals, suicide attempts)
TRAUMA INJURIES (FOUR TYPES)
Suicide
Transport accidents
Falls
Assault
INJURIES EARLY CHILDHOOD
Near-drowning & drowning major causes of injury & death
INJURIES YOUNG ADULTHOOD
Self-harm & road crashes are primary causes of injury
INJURIES ELDERLY
Falls are most common cause of injury or death
VSS HEART RATE
80-100 BPM
VSS RESPIRATORY RATE
12-20/ MIN
VSS SP02
95%
VSS TEMPERATURE
36.5 - 37.2 C
VSS BLOOD PRESSURE
120/80
VSS BLOOD GLUCOSE LEVELS
4 mmol/L - 8 mmol/L
MECHANISM OF INJURY (MOI)
MOI is used to determine types of injuries and patterns of injuries in trauma patients and is useful for screening and assessing potential of occult injuries
HIGH RISK MOI FACTORS
Ejected for vehicle Fall above 3m Explosions High impact RTC Vehicle rollover Entrapped for 30+ min
BLUNT TRAUMA MOI (LIST 5)
Acceleration Deceleration Compression Shearing Direct force
BLUNT TRAUMA MOI ACCELERATION
Occur when moving object strikes a stationary or slower moving body (i.e. blow from a blunt object)
BLUNT TRAUMA MOI DECELERATION
Occur when moving body hits a solid or slower moving object (reverse of acceleration)
BLUNT TRAUMA MOI COMPRESSION
Occur with a squeezing inward pressure applied to the tissues
SHEARING
Shearing forces can cause organs (e.g. liver & heart) to pull away or fold around muscles & ligaments that secure them in position (internal bleeding)
DIRECT FORCE
?
FALLS MOI
Mechanism of injury is vertical deceleration
Severity and type of injury associated with distance or height of the fall, area of body impact, landing surface and whether the fall was broken on the way down.
PENETRATING TRAUMA MOI
Injuries caused by a foreign object penetrating or entering the body
Penetrating object creates energy that dissipates into the surrounding tissue
Extent of damage dependant on object used, amount of force behind object, distance from the victim to the weapon, type of tissue penetrated
BLASTS INJURIES MOI
Primary injuries → pressure waves
Secondary injuries → fragments and nearby debris in air
Tertiary injuries result from person being displaced either onto ground or objects
Resulting in = Avulsion, amputation, fractures, penetrating injuries, crush injuries, burns etc.