what is the perfusion triangle?
heart (pump function)
blood vessels (container function)
blood (content function)
what are the causes of shock?
pump failure
low fluid volume
poor vessel function
what kind of shock will a pump failure cause?
cardiogenic
obstructive
3 examples of obstructive shock
tension pneumothorax
cardiac tamponade
pulmonary embolism
what kind of shock will poor vessel function cause?
distributive shock
what are the 4 types of distributive shock
septic
anaphylactic
neurogenic
psychogenic
what kind of shock will low fluid volume cause
hypovolemic
(hemorrhagic or nonhemprrhagic)
“classic” signs of shock
cool, pale, diaphoretic skin
rapid/weak (thready) pulse
what happens when someone is in hypovolemic shock?
results from fluid/blood loss
what happens when someone is in distributive shock?
results from a widespread dilation of arteries and venules, not enough blood to go around the body at the same time
s/s of neurogenic shock
spinal cord damage
head will be cool, pale, sweaty
below the neck will be flush and dry
treatment for neurogenic shock
provide smr
conserve body heat
assist w/ ventilations
s/s of septic shock
hypotension
ALOC
fever
flush skin
severe infection
s/s of anaphylactic shock
hypotension
hives/uticaria
wheezing
flush skin
severe allergic reaction
s/s of pyschogenic shock
caused by a sudden reaction of the nervous system that produces a syncopal episode
causes of cardiogenic shock?
trauma to heart
heart attack
s/s of cardiogenic shock
pulmonary edema
hypotension
rales
tachypnea
blockage of blood flow to the lungs from a air bubble or blood clot
pulmonary embolism
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EMT65
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human body57
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gastrointestinal & urological emergencies35
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neurological emergencies37
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endocrine & hematologic emergencies25
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shock18
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head/spinal/ orthopedic injuries12
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bleeding/soft tissue injuries35
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airway management/ respiratory emergencies21
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cardiovascular emergencies12
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environmental emergencies19
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allergy/anaphylaxis/envenomation8
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pediatric emergencies15
