40 results
Underlying causes of PEA arrest: H’s and T’s 

Hypovolemia, Hypoxia, Hydrogen Ion (acidosis), Hypo/Hyper-kalemia, Hypothermia
Toxins, Tamponade,
Underlying causes ... acute, massive MI ... #arrest #HsTs #Differential ... #Diagnosis #Table
Red Eye - Differential Diagnosis
Lids:
 • Stye (a.k.a. hordeolum)
 • Chalazion
 • Blepharitis
 • Periorbital cellulitis
Conjunctiva
Red Eye - Differential ... #Eye #redeye #Differential ... #Diagnosis #table ... #causes #ophthalmology
Causes of Secondary Hypertension - Differential Diagnosis and Screening Testing
Common causes: 
 • Renal parenchymal disease
Hypertension - Differential ... Doppler ultrasound; MRA ... CT or MRI scan of ... #Hypertension #Differential ... Screening #Workup #table
Differential diagnoses for the neuro-ophthalmologic finding of diplopia.
Neoplastic: 
 • Intraorbital meningioma 
 • Pituitary adenoma
Differential diagnoses ... for the neuro-ophthalmologic ... intracranial pressure (CN Ill ... #Diagnosis #Causes ... #Ophthalmology
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
Double Vision - Differential ... ptosis with CN Ill ... a mass as the cause ... #DoubleVision #Differential ... #Ophthalmology
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
Disorders • CN Ill ... Skew Deviation Casey ... #Localization #ophthalmology ... #neurology #differential
Shock - Differential Diagnosis by Classification

Hypovolemic (Intravascular volume depletion)
 - Hemorrhagic 
   • Trauma
Shock - Differential ... contractility) - Acute MI ... exacerbation (any cause ... DrEricStrong #Shock #Differential ... Classification #Table
Mydriasis and Miosis - Differential Diagnosis Framework

Causes of Mydriasis:
Dilated pupils (mydriasis) more than 7mm
 • Unilateral
Mydriasis and Miosis - Differential ... Mydriasis: CN Ill ... Mydriasis #Miosis #differential ... #diagnosis #ophthalmology ... #causes
Anisocoria - Pupillary Defects - Differential Diagnosis Algorithm

Physiological - Simple Anisocoria ( <O.5mm)
 - Anisocoria equal
Pupillary Defects - Differential ... Fascicle (Other CN Ill ... Pupils #Defects #Differential ... Diagnosis #Algorithm #Causes ... #Ophthalmology
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
Young females Differential ... Diagnosis: • CN Ill ... dissociation • Other causes ... PhysicalExam #neurology #ophthalmology