Environmental Flashcards
Most common bite
dogs younger than one year
Common pathogen found in dog bites
pasteurella multocida
Dog bite antibiotic
- Augmentin 875/125mg
- Clindamycin
- Cipro 750mg
Highest infection rate for domestic animal bites
cats
Wild animal bite antibiotic
Bactrim 160mg
Larger animal injuries
penetrating trauma
deep arterial damage
nerve damage
organ damage
Hymenopteras
ants, bees, and wasps
Most common hymenoptera reaction
local reaction
Victims of multiple stings sx
NVD
dyspnea
hypotension
tachy
syncope
Sting tx
remove stinger in a horizontal fashion
wash site
cold compress
Sting meds
antihistamines
Non-infectious ascending paralysis within 5 days of a tick bite
tick paralysis
Tick bite tx
removal
wash site
Doxy
Do nots of tick removal
petroleum jelly
nail polish
rubbing alcohol
hot match
gasoline
What snake toxin causes respiratory paralysis?
neurotoxins from coral snake
What releases cytolytic venom?
rattlesnakes and pit vipers
Cytolytic venom destroys
tissue and endothelial lining of blood vessels
Pit viper head
triangular shape
nostril with pit
Coral snake head
round head
nostril without pit
*split anal plate
Nonvenemous snake head
oval shape
oval pupil
Cytolytic bite sx
pain
swelling
tingling
metallic taste
Neurotoxic bite sx
ptosis
dysphagia
diplopia
respiratory arrest
Snake bite tx
imobilize
remove jewelry
clean bite
loose dressing
MEDEVAC
Black Widow bite sx
muscle pain
spams
rigidity
Spider Bite tx
pain control and muscle relaxers
Scorpion bite sx
convulsions
muscle spasm
pulmonary edema
Jellyfish meds
antihistamines
corticosteroids
pain meds
Jellyfish tx
rinse with sea water
vinegar
sand
shaving cream
baking SODA
Jellyfish sting sx
pain
erythema
pruritis
edema
Sting Ray tx
heated water for 30min at 40-45C or 104-113F
poison control for antivenom
Sting ray penetrating wound via
barbed spine
Sting Ray med
Doxy 100mg 7 days
Coneshell tx
Doxy and Medevac
Near Drowning
survival after suffocation or LOC in a liquid
Near Drowning risks
inadequate supervision
inability or over estimation of swimming
alcohol
hypothermia
Lubricating agent in lung tissue
surfactant
Physiology of dying from drowning
hypoxemia
Near Drowning physical findings
neurologic deficits
arrhythmias
acidosis
renal failure
Near Drowning Tx 3 phases
Prehospital
Emergency department
Inpatient
Near Drowning acute inteventions
rescue
remove wet clothing
CPR
C-spine
do not Heimlich
Near Drowning airway management
neurologic deterioration
inability to maintain SPO2 of 90
PaCO2 above 50
Near Drowning factors of poor prognosis
submersion >5 min
BLS after >10 min
Ressucitation >25 min
Glasgow <5
blood ph <7.1
Contaminants concentrate where in polluted water?
sediment
Polluted water protection
dry suit and full facemask
Biological water conatminants
algal bloom
bacteria
virus
parasites
After a storm Urban areas are at higher risk for contaminants for how long?
36 hours
5 most common water* bacteria producing soft tissue infection
aeromonas
Edwardsiella tarda
Erysipelothrix
vibrio
mycobacterium marnium
Polluted Water empiric antibiotics (non-seawater)
Keflex 250mg
or
Clindamycin / Metronidazole
Vibrio antibiotic
Doxy
4 mechanisms of inhaled agents
physical particles
siple asphyxiants
chemical irritants
checmil asphyxiants
Upper airway injury symptoms
difficulty breathing
edema
Lower respiratory injury symptoms
SOB
productive cough
Toxic gas tx
remove from source
100% O2
BVM
ET tube if indicated
Simple asphyxiants examples
CO2
Nitrogen
Methane
Natural Gas
Simple asphyxiants affect on body
only hypoxemia
Simple asphyxiant tx
remove from source
100% O2
CPR
Chemical irritant that are highly reactive with water
hydrophilic chemical
Hydrophilic reaction
react with moist membrane and cause immediate burning and pain
Non-hydrophilic agent reaction
pass deep into lungs causing acute lung injury
Chemical irritant tx
Supportive care and irrigation of eyes with water or saline
albuterol
O2
Intubation
Most common chemicals asphyxiant
Carbon monoxide
H2S smell
rotten egg
3 drugs in cyanide antidote kit
- inhaled amyl nitrite
- IV sodium nitrite
- IV sodium thiosulfate
Most common overdose method
ingestion
Tox exam
mental status
pupil size
skin temp
sweat or lack of
muscle tone
GI motility
Toxidrome
collection of signs and sx after an exposure to a substance; aka toxic fingerprint
If tox PT has AMS or coma administer
Naloxone .2 to rule out overdose
Alcohol withdrawal PT medication
Thiamine
GI tox decontamination
OG/NG tube lavage
Activated charcoal 1mg/kg
Anticholinergic toxidrome
dry as a none
red as a beet
hot as a hare
blind as bat
mad as a hatter
stuffed as a pipe
Anticholinergic most common use for overdose
antihistamines via ingestion, inhalation, or ocular
Anticholinergic inhibits what system
PNS
Most common EKG finding for anticholinergic
sinus tachycardia
Anticholinergic overdose tx
symptomatic
MEDEVAC
Dystonic reaction
akathisias
dyskinesia
hypokinesia
Parkinson syndrome
SSRI overdose tx
supportive care
d/c SSRI (with taper)
IV access MEDEVAC
Serotinin syndrome
fatal adverse drug reaction to SSRI causes neurological /muscular dysfunction
SSRI overdose sx
hypothermia
diaphoresis
tachy
bp changes
dilated pupils
confusion
agitation
nystagmus
MUST RULE OUT PYSCH CONDITIONS
SSRI overdose hallmark
myoclonus (twitching and jerking)
Main inhibitory neurotransmitter in the CNS
GABA
Benzo overdose sx
dizziness
slurred speech
ataxia
Sedatives and hypnotics effect what system
CNS
Sedative and hypnotic overdose tx
ABCs
flumazenil