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PHTLS & EXAM PREP QUESTIONS AND ANSWERS #18
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PHTLS & EXAM PREP QUESTIONS AND ANSWERS #18What are newton's 1st & second laws? - correct answer 1: a body at rest will remain at
rest, and a body in motion will remain in motion until acted upon by an outside force
2: force = mass x accelleration
What are the rule of 9's? - correct answer adult
9% = entire head
9% = entire arm
9% =chest
9% =abdomen
18% = entire back
18% = entire leg
1% perineum
Child
18% = entire head
9% =entire arm
9% = chest
9% = abdomen
18% = entire back
14% = entire leg
1% = perineum
What are the signs/symptoms of spinal injury? - correct answer neurologic function
above the injury is intact and function below the injury is absent or markedly diminished.
Specific manifestations will depend on the exact level of injury.
What are the (5) major areas of blood loss? - correct answer - external
- chest
- abdomen
- pelvis
- long bones
What are the (3) types of blast injuries? - correct answer primary injuries are caused by
the effect of transmitted blast waves on gas-containing structures;
secondary injuries, by the impact of airborne debris;
Tertiary injury, by the transposition of the entire body because of blast wind or structural
collapse; and
Quaternary injuries, by all other forces
What 3 collisions are involved with an mva? - correct answer 1. Vehicle collides with an
object
2. Unrestrained occupant collides with inside of car
, 3. Internal organs collide with one another or with the wall of the cavity that contains
them
What is o'donohue's triad? - correct answer adult pedestrian vs car accident
- adults tend to protect themselves by turning away
1 - bumper vs lower legs; tib/fib#, knee tear
2 - falls towards bonnet; intra-abdominal/thoracic injury, #femur/pelvis/thorax/spine.
3 - strikes ground; deceleration/compression forces, head injuries
What is waddell's triad? - correct answer child vs car
- children tend to face the oncoming vehicle
1 - bumper vs fermur/pelvis
2 - bonet vs thorax; head/neck flexes forward; head/face/neck may collide with bonnet.
3 - strikes ground/dragged under car.
What is the munro-kellie doctrine? - correct answer 1. The total intracranial volume if
fixed because of the inelastic nature of the skull
2. Inside the skull is the brain, blood & csf
3. If icp is increased (via haematoma, swelling or tumour) the skull cannot expand to
accommodate this
4. As a result some other structure must be forced out
5. First the csf & blood are forced out
6. The only way out is through the foramen magnum
7. Once the ability to force out csf & blood has been exhausted, the icp rises rapidly &
the next structure to be forced out of the vault is the brain
8. One of the first parts of the brain to be forced out is the medulla oblongata causing an
alteration in respirations
What is major trauma? - correct answer any trauma that requires p1 transport
Under what conditions should a patient with major trauma not be taken to the major
trauma centre? - correct answer - diversion to nearest ed for stabilisation is required
What considerations should be remembered in major trauma and burns? - correct
answer burns patients with burns should be taken to fiona stanley. Should major trauma
be present, they should be taken to rph.
What are 4 signs to assist determination of death? - correct answer persons in cardiac
arrest
- obvious signs of death
- rigor mortis, with or without decomposition/putrification
- palliative care
- advanced directive
When should a patient be taken directly to the burns unit? - correct answer - 10%tbsa
- airway burns
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