Test #1 Flashcards
how much of an increase in thickness of a body part requires us to double mAs?
4 cm
trauma
sudden, unexpected, dramatic, forceful or violent event
examples of blunt force trauma
MVC (motor vehicle collision)
fall
assault
examples of penetrating trauma
GSW (gun shot wound)
stabbing
examples of explosive trauma
pressure
shock waves
projectiles
examples of a burn trauma
fire
frost bite
water (hot)
steam
chemicals
electricity
level 1 trauma center
handle the majority of trauma care
complex and unique trauma care
trauma training & research leaders
level 2-5 trauma center
decreased ability for trauma care as the # increases
level 5: stabilize patient before they go to a more capable trauma center (usually rural)
what is more important, centering or including all anatomy?
including required anatomy
who is on a trauma team?
surgeon
nurse
RT
MRT
support staff
what is a casualty officer?
the physician in charge
what is the trauma team goal?
diagnose and treat injuries in the shortest time possible
spinal precautions
check with nursing before moving ANYTHING
can generally move limbs
never roll or turn head
protocols are established at sites, may differ
how much should we increase the technique (mAs) for a fiberglass cast?
increase mAs 25%
how much should we increase the technique (mAs) for a dry plaster cast?
increase mAs 50%
how much should we increase the technique (mAs) for a wet plaster cast?
increase mAs 100%
when does size distortion occur?
when OID increases
(magnification)
when does shape distortion occur?
when IR/CR/part is misaligned
what happens when we increase the SID?
reduce magnification
what are some additive pathologies?
(we need to increase technique)
pneumonia
pleural effusion
enlarged heart
edema
what are some destructive pathologies?
(we need to decrease technique)
pneumothorax
emphysema
osteoporosis
dont forget to study the glasgow coma scale!
:)
MVC (motor vehicle collision) protocol
- AP chest
- AP pelvis
- AP & lateral C/T/L spine projections
FOOSH
Fall On Out Stretched Hand
How does knowing the mechanism of injury (MOI) help us?
helps determine severity and location of injury
possible associated injuries
especially helpful with unconscious patients
when do we need to use a calibration sphere? Why?
on trochanter or hip (AP)
helps surgeon have the correct hardware
must be at level of the bone
minimum 1/2 of sphere in primary beam
what percentage of pelvic fractures are fatal?
up to 50%
high incidence of internal hemorrhage
severe head injury (glasgow)
8 points or less
moderate head injury (glasgow)
9-12 points
mild head injury (glasgow)
13-15 points
what xrays should be ordered for a FOOSH?
wrist and scaphoid
