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24 Cards in this Set

  • Front
  • Back
The major ( potential) haemostatic agents in

major blood loss are ?

1. Antifibrinolytic lysine analogues
- aminocaproic acid
- tranexamic acid
2. Protease inhibitors
- aprotinin
3. Synthetic ADH analogues
- desmopressin
4. Recombinant factor VII
Definition of major blood loss ?
Loss of >20% total blood volume
What percentage of trauma-related deaths are due to bleeding ?
30%
In regards to the use of 2G tranexamic acid in trauma, in the CRASH-2 Trial, which is incorrect?
A. There was a significant difference in in-hospital mortality within 4 weeks of injury ( 14.5 % vs 16.0% )
B. Bleeding-related mortality was reduced
C. There were reduced transfusion requirements in the tranexamic acid group.
D. There was no increase in fatal / non-fatal vascular occlusive events.
C. No Statistically significant difference

between TA and placebo.

In regards to Flail chest, what are considered high risk patients ? (3)
1. > 8 rib fractures
2. Age > 65 years
3. Underlying Lung disease

** Note: Double fractures of at least 3

adjacent ribs are required in order to


produce a flail chest.

In regards to Blast injury, which of the following is correct ?
A. Primary blast injuries occur via bomb fragments causing penetrating injury.
B. Tertiary blast injury is due to blunt trauma.
C. Quaternary blast injury is due to barotrauma to the tympanic

membrane and lungs.
D. Being thrown by the blast wind is quaternary blast injury.

B. Tertiary Blast Injury is Due to structural

collapse / blunt trauma from being thrown by the blast wind.

A = Secondary blast injury = Bomb fragments
C = Primary blast injury = Barotrauma
D = Tertiary blast injury

List the Types of blast injury. [4 ]
Primary blast injury : Direct barotrauma to organs by over/under

pressurisation ( tympanic membrane / lung / colon )

Secondary Blast injury : Penetrating trauma by fragments of bomb /


explosion matter

Tertiary Blast injury : Structural collapse / Blunt trauma from being thrown by blast wind

Quaternary Blast injury :
a. Burns
b. Asphyxia
c.exposure to toxic inhalants.

In regards to Hanging, which of the following is incorrect ?
A. Complete hanging = feet not touching ground
B. The Cervical spine is spared if the fall from hanging is less than the

patient's height.
C. Cervical spine fractures are commonly C1 # with anteriorly placed hanging knots.
D. Bradycardic cardiac arrest can occur from direct carotid stimulation from the hanging rope /material.

C. C2#
What are the 3 mechanisms of injury in

Hanging ?

1. Cervical spine # (C2)
2. Cerebral anoxia
3. Bradycardic Cardiac arrest.
What are the 2 types of Hanging ?
1. Complete
2. Incomplete


Both have body suspended, but complete has feet NOT touching the ground.
Incomplete have the feet / body parts touching the ground.
What are the 4 Young Classifications for Pelvic fracture ?
1. Lateral compression (50%)
2. AP compression ( 25%)
3. Vertical shear (5% ) **
4. Mixed-combination of above ( 15-20%)
What does the "MIST" Mnemonic stand for in Trauma ?
Mnemonic for the Emergency trauma Hx:

Mechanism
Injuries
Signs
Treatment
In regards to the Mnemonic for Acute potential Life threatening Trauma Conditions, what does "ATOM CF" stand for ?
Airway Obstruction
Tension Pneumothorax
Open Pneumothorax
Massive Haemothorax
Cardiac tamponade
Flail chest
In regards to the Mnemonic for Delayed life threatening conditions in Trauma, what does "PAM DOT" stand for ?
Pulmonary contusions
Aortic disruption
Myocardial contusion

Diaphragm injury
Oesophageal injury
Tracheobronchial injury.
Parklands Formula for Burns fluid

management ?

4 x % BSA x weight

- Over 24 hours
- crystalloid
- 50% in first 8 hours
- 50% in subsequent 16 hours
What are the 2 indications for an Emergency

Targeted Burr Hole in Head injury ?

1. GCS < 8


2. CT brain evidence of extradural haematoma causing Midline shift




PLUS : Unequal pupils

What are the 2 Main contraindications for

performing an Emergency Targeted Burr hole in the head injured patient ?

1. No CT brain performed
2. GCS > 8
List the 3 main unstable cervical spine

injuries ?

1. Flexion tear drop fracture (flexion)
2. Bilateral facet joint dislocation ( flexion)
3. Jefferson fracture.

( vertical axial compression )

Which gains the lowest score in the GCS

assessment : decorticate or decerebrate


posturing ?

Decerebrate = extensor = score of 2
--> severe midbrain injury


Decorticate = flexor = score 3 :

"direction of cortex"

---> Sign of severe intracranial injury above the midbrain.

Which is correct regarding Odontoid fractures ?


A. The most common type is Type III
B. Type II is at the tip of the dens
C. Type III is a low # into the body of C2
D. Type III has a frequency of 64%

C.

A = Type II @ 64% = base of dens
B = Type I is at the tip of the dens = 6% #
D = Type III has frequency of 29%
In regards to Head Injury and statistical

details, which of the following is correct ?
A. 30% of head injuries are considered moderate - severe, with GCS < 13.
B. Only 1% of Minor head injuries result in the need for Neurosurgical


intervention .
C. Between 7-12% of minor head injuries (GCS 14-15) will have a positive CT brain for intracranial injury.
D. 60% of CT brain scans for moderate-severe head injury will be positive for intracranial injury.

C.

A = <20% Head injuries are

( Moderate GCS 9-13 ; Severe GCS < 9 )


B = 1-3% ** Minor Head injuries will


ultimately require Neurosurgical


intervention.
D = 40%

When comparing the New Orleans and

Canadian CT Clinical Decision Rules for Head injury, which of the following is incorrect?
A. The Canadian Rules are more specific for the need for Neurosurgical intervention ( 37 % vs. 5 %)
B. The Canadian Rules are more Sensitive for finding a lesion on CT brain.
C. Their age criteria differ.
D. The Canadian Rule is more specific for finding a lesion on CT scan , AND identifying who will require Neurosurgical intervention.

B = New Orleans : 100% sensitive

vs Canadian 83% sensitive

C = New Orleans : Age > 60
Canadian : Age > 65

Which has the greater mortality : Subdural or

extradural haematoma ?

Subdural : 75% mortality

Extradural : 30% mortality
Which out of subdural and extradural Haematoma crosses suture lines on

CT brain ?

Subdural Haematoma crosses suture lines