Critical care and Emergency Flashcards
Pattern: 7 mo with diarrhea, vomiting, decreased urine output, tachycardia, poor perfusion
Hypovolemic shock
Pattern: 8 day old with poor feeding, tachypnea, mottled, large heart, gallop, murmur, hepatomegaly, jugular venous distension
cardiogenic shock
Pattern: 14do with fever, lethargy, extreme tachycardia, grunting, warm extremities, bounding pulses
Septic shock
Pattern: 4yo with peanut allergy who went to the circus, tachycardia, warm extremities
distributive shock
Fluid administratin for shock
20ml/kg (repeat as necessary 60-200ml/kg
Rx for cold shock
epinephrine
Rx for warm shock
norepinephrine
Rx for cardiogenic shock
milrinone
1st line Rx for shock
dopamine
Rate of CPR and ratio
100/min
15:2
Define bradycardia with pulse
HR
Rx for bradycardia with pulse
Epi IV/IO 0.01mg/kg
ETT 0.1mg/kg and atropine 0.02mg/kg (minimum dose 0.1mg)
Pattern: tachycardia with poor perfusion, narrow QRS, variable rate
Sinus tachycardia
Pattern: tachycardia with poor perfusion, narrow QRS, P waves abnormal, rate not variable
Supraventricular tachycardia (vagal, adenosine, syndrchronized cardioversion)
Pattern: Tachycardia with poor perfusion, synchronized cardioversion, wide QRS,
ventricular tachycardia, syndchronized cardioversion, increase to 2J/kg if not effective
Which are shockable rhythm?
VF
VT
Which are not shockable rhythm?
asystole, PEA
Rx for VF/VT
2-4J/kg, epi, amiodarone, lidocaine,
Rx of torsades de pointes
Magnesium
Rx for aystole/PEA
epinephrine
Poor prognosis for near drowning
10min, resuscitation >25min or in ER, water >10C
Survival with near drowning
75%
What are cardiac patterns seen with hypothermia?
bradycardia and a-fib
Prevention of near drowning recs
5ft fences that isolate pool from house and yard, self closing gates, appropriate supervision, CPR education
Standard of care for foreign body aspiration
Rigid bronchoscopy
Pattern: superficial, pain, redness burn
first degree burn
Pattern: partial thickness, superficial pain, blister, deep-white, leathery burn
second degree
Pattern: full thickness, well demarcated, black, leathery, painless, no blistering burn
3rd degree burn
rx for 2nd degree burn
pain and fluid management
rx for 3rd degree burn
skin grafting
Pattern: full thickness plus fascia, muscle, bone
4th degree burn
rx for 4th degree burn
reconstructive surgery
Calculate fluid replacement for burn
4ml/Kg x % BSA + maintenance
2nd way to calculate fluid replacement
2000mL/m2 burned BSA + 5000mL/m2 TBSA
schedule for fluid replacement of burn patient
1/2 over 1st 8 hrs, rest over 16hrs
What replacement fluid type for first 24hrs
crystalloid
High voltage AC - power line symptoms
devastating thermal injuries, no LOC or cardiac arrest
Low voltage AC burns cause what?
skin/oral injury particularly if strong enough to cause tetanic muscle contraction (16-20mAmps) respiratory muscle paralysis (20-50mAmps) ventricular fibrillation (50-120mAmps)
What type of burn cause single muscle contraction that throws victim away from source?
DC - railroad
Pattern: seizures, respiratory arrest, cardiac standstill that self resolves, superficial burns
Moderate lightning injury
Pattern: cardiac arrest from lightning injury
severe
Rx electrical burns
fluid managment goals with focus to clear myoglobin
Test for CO posioning
Co-oximetry
How does half-life of CO change with high flow non rebreather mask and hyperbaric oxygen
300 –> 90 –> 30
Common bacteria in human bites
eikenella corrodens, staph, strep, corynebacterium
Rx for high risk bite areas
amoxicillin/clavulanate
Ampicillin/sulbactam
bactrim or quinolone and clindamycin
Reservoir for rabies
skunk, racoons, and foxes
What is the Milwaukee protocol for rabies
drug-induced coma with ketamine and midazolam, antiviral treatment with amantadine and ribavirin
Rx rabies
Rabies Ig into the wound or IM and
Rabies vaccine and good wound care
Rx of bite if animal is rabid
ppx immediately
Rx of bite to head/neck
ppx immediately
Rx of bite if animal is healthy
observe animal for 10 days and ppx if animal becomes rabid
Rx of animal bite if animal is unavailable and rabies common in region
consider ppx
Rx for any contact with bat
ppx
Majority of the venomous bites are from what kind of snakes.
Pit vipers
Which snake has a neurotoxin
Mohave rattlesnake
Rx for snake venom
crotalid antivenom
When should you give antivenom?
moderate to severe symptoms or bite to face or neck
What are complications of snake bites
local necrosis, coagulopathy, rhabdomyolysis, nephrotoxicity, neurotoxicity if antivenom not given
Pattern: brown with dark violin shaped mark on back, six eyes, endemic in south, west and midwest, basements
brown recluse spider
What is the venom from brown recluse spider
sphyingomyelinase D –> necrosis
Pattern: painless bite, two puncture marks with surroudning erythema –> red –> pain and then resolves
brown recluse spider
Pattern: bite that become necrotic over several days, 1-2 cm, stops extenidng after 10 days heal over several weeks.
brown recluse spider
Rx for brown recluse spider
wound care, dapsome prevents necrotic lesions, early surgical intervention is harmful so wait until lesion demarcated.
Pattern: spider with shiny black with red markings, red hourglass or anvil shape on abdomen
widow spiders
Which widow spider is harmful?
black
brown are benign
Pattern: spider bite, latrodectism, painless bite or local pain, blanched patch, PAIN - muscle spasm, generalized or local diaphoresis, HA
black widow spiders
What does the venom of the black widow spider do?
neurotoxin causing massive exocytosis from presynaptic nerve terminals, acetylcholine, norepinephrine, DA, glutamate
Rx for black widow
local wound care, benzodiazepines for muscle spasm, limited antivenom (bad for asthma and pt with allergies)
Pattern: bite, sympathetic release, mydriasis, nystagmus, hypersalivation, dysphagia
scorpion
Rx jellyfish
vinegar, coca cola, old wine, box jellyfish antivenom
Define heat stroke
core body temperature >40C,
Pattern: delirium, syncope, seizures, coma, hypotension, tachycarida, hypovolemic shock, rhabdo, renal failure, liver injury, DIC, bacteremia and bacteruria after 24 hours
heat stroke
what are the 2 triggers for malignant hyperthermia
succinylcholine and volatile anesthetics (sevoflurane)
Pattern: tachycardia, musclerigidity, mixed acidosis rising ETCO2, hyperkalemia then later hyperthermia
malignant hyperthermia
How to calculate size of uncuffed endotrachael tube
age in years/4 + 4
How to calculate size of cuffed endotracheal tube
age in years/4 + 3
Drugs used for blunting increased ICP during intubation
barbiturate or lidocaine
Rx for flail chest
intubate
Coma level requiring intubation
Indication for ab CT with IV contrast after trauma
1) elevated transaminases
2) gross-microscopic hematuris
3) positive FAST exam
4) declining hematocrit
5) inability to perform serial exams because of other injury
Risk of appendicitis eruption in what age
What percentage of pt with appendicitis with pyuria
4-25%
First line for appendicitis workup
US for non-obese
Indication for CT for appendicicitis work up
IF US negative but you are still suspicious
Obese
If US cannot visualize appendicitis
Intussusception in >5 years should make you suspicious for
- small bowel lymphoma
- Meckel diverticulum
- Henoch schonlein purpura
- cystic fibrosis
Pattern: children with malrotation, emesis quickly leading to shock, imaging show small bowel twisting around superior mesenteric artery
midgut volvulus
Pattern: gasless abdomen, double-bubble sign signifies duodenal obstruction
What test should you get?
midgut volvulus
Upper GI series
Pattern: upper GI showed misplaced duodenum, corkscrew sign
midgut volvulus
Rx for midgut volvulus
Ladd procedure
Core temp for brain death call
Over 35 degress
First exam for brain death exam
24hrs after CPR or other severe brain injury
Interval time between two brain death exam
Describe apnea test
- Provide oxygen
- No spontaneous respiratory effort noted
- Final PaCo2 >60mmHg
- Final PaCO2 >20mmHg increase over baseline
When is ancillary test needed
- if apnea test is contraindication or cannot be completed due to hypoxia or hemodynamic instability
- Uncertain about exam
- If drugs are on board
- Reduce inter-examination
Two ancillary testing for brain death
EEG or cerebral blood flow study