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UC Irvine EM
Twice daily high-yield EM facts built by residents, for residents.
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UC Irvine EM Dec 7
Guillian-Barre poor prognostic factors: elder patients, a/w Campylobacter; 25% will require mechanical ventilation
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UC Irvine EM Dec 6
Therapy of heat stroke optimally involves spraying water on patient while fanning them. Cold water bath immersion is another option.
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UC Irvine EM Dec 6
Avoid antimotility agents in C. diff as they allow for further overgrowth and toxin production.
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UC Irvine EM Dec 5
Bacteria a/w purpura include Neisseria meningitides, shiga-like toxin associated HUS (E. Coli 0157), non-shiga toxin HUS (s. pneumo)
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UC Irvine EM Dec 5
Highest rate of suicide completion: Elder white males. Highest rate of suicide attempt: White females.
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UC Irvine EM Dec 4
Consider popliteal artery injury with knee instability following dislocation/trauma. 10% will stil have intact distal pulses.
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UC Irvine EM Dec 4
Scorpion envenomation: initially “SLUDGE”/cholinergic response, followed by norepinephrine release. Tx: nitroprusside for htn, supportive
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UC Irvine EM Dec 3
Methanol poisoning treatment: bicarb, alcohol dehydrogenase inhibitors, dialysis, and folate.
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UC Irvine EM Dec 3
Eclampsia. Definitive treatment is immediate delivery. Labetolol, hydralazine and magnesium are all temporizing measures.
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UC Irvine EM Dec 2
Physical exam findings of torsion: unilateral testicular tenderness, edema, absent cremasteric reflex.
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UC Irvine EM Dec 2
Pertussis phases: catarrhal (cough, sneeze, runny nose), paroxysmal (episodic spastic coughs), convalescent (improvement)
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UC Irvine EM Dec 1
Impetigo: group A streptococcus, but S. Aureus possible; honey-crusted rash; Tx: topical mupirocin, or oral penicillin/cephalosporin
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UC Irvine EM Dec 1
HSP: palpable purpura of the buttocks, ab pain, hematuria, joint pain. Higher risk of ileoileal intussusception.
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UC Irvine EM Nov 30
The most common cause of delirium in the elderly is due to medication interactions/side effects (up to 39%!)
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UC Irvine EM Nov 30
Dancer’s fx: like Jones, except fx line enters the tarsometatarsal joint space. Attached to peroneus brevis tendon.
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UC Irvine EM Nov 29
Avoid fluorinated steroids for facial rashes (triamcinolone, betamethasone); hydrocortisone is safe
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UC Irvine EM Nov 29
Most common dysrhythmia in pediatric patient is PSVT. Tx: vagal maneuvers, adenosine, and AV nodal active agents.
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UC Irvine EM Nov 28
In order to see a pericardial effusion on CXR, you need at least 250 cc of fluid.
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UC Irvine EM Nov 28
Up to 20% of kidney stones can present with normal UA
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UC Irvine EM Nov 27
Hydatidiform mole sx: first trimester HTN, uterine enlargement, vaginal bleeding, hyperemesis, high B-HCG.
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