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41 Cards in this Set

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Kinetics
is a branch of physics dealing wiht forces of objects in motion
Inertia, newtons first law
tendency of an object to remain at rest or in motion unless acted upon by an external force
motion
the process of changing place, movement
Kinetic energy
the energy an object has while it is in motion,
I is related to the objects mass and velocity
Velocity
the rate of motion in a particular direction in relation to time
Kinetic Energy formula
weight x speed squared
divided by 2
Force
mass x acceleration
the five types of vehicle impacts
frontal, lateral, rotational
rear-end, and rollover
caliber
the size of a bullet
yaw
swing or wobble
drage
the forces acting on a progectile
cavitation
the outward motion of tissue due to t a projecdtiles passage resulting in a temporary cavity and vacuum
Pelvic fracture accounts for how much blood loss
up to 2000 ml
femoral fractures account for how much blood loss
up to 1500
Tibial/ fibular and humeral fractures may account for as much as how much blood loss
up to 500 ml
what is the most commonly fractured bone in the human body
clavicle
what kind of fracture is most likely going to be an open fracture
Tibia
what are the risks in a joint fracture
this area is very vascular and inervated much more than a shaft fracture
what is the most common cause of trauma death
head trauma
what is the usuall pressure in the brain
10 mmhg
increased CO2 causes the cerebral arteries to do what
dilate
decreased CO2 in the cerebral arteries causes what
vasoconstriction
what is the cushings triad
high blood pressure
irregular respirations
slow pulse
what should be the ventilation rate and end tidal CO2 range for patients with signs fo brain herniation
20 breaths per min
30 to 35 for ETCO2
the minimum blood pressure necessary to maintain cerbral perfusion in the adult patient with serious head injury is
90 mmhg
Why is Atropine a desirable adjunct to rapid sequence intubation
It reduces vagal stimulation
It reduces airway secretions
It reduces fasciculations
It helps maintain heart rate during intubation
where does the spinal cord end
between L1 and L2
How many bones in the cervicle spine
7
how many bones in the thoracic vertebrae
12
how many bones in the lumbar spine
5
how many bones in the sacrum
5
how many bones in the coccyx
3 to 5 fused bones
the collar region inervates
what area of the spine
C3
the nipple line inervates what area of the spine
T4
the umbilicus inervates what area of the spine
T10
Central cord syndrome
related to hyperextension injuries
Anterior cord syndrome
damage due to bone fragments or pressure on the arteries that perfuse the anterior portion of the cord
Brown Sequard syndrome
penetrating injury that affects one side of the cord
more than half of all spinal cord injuries are found where
cervical spine
A hemothorax can hold up to what volume of blood from a hemothorax
1500 ml
extensive pulmonary contusion can result in how much blood loss
1500ml