15 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Motor Function Shoulder ... Anterior Shoulder ... Dislocation - May ... cause axillary ... Myotomes #diagnosis #neurology
Ocular Ultrasound Pocketcard
Painless Vision Loss
 • Retinal Detachment 
 • Posterior Vitreous Detachment 
 • Vitreous
Ocular Ultrasound ... Rupture • Lens Dislocation ... #Ultrasound #pocus ... #differential # ... diagnosis #radiology #ophthalmology
Ultrasound-Guided Regional Nerve Blocks in Emergency Medicine: Interscalene Brachial Plexus Nerve Block
Uses in the Emergency Department:
Plexus Nerve Block Uses ... mid-humerus fracture, reduction ... of shoulder dislocation ... ultrasound #anesthesia #pocus
Ultrasound-Guided Regional Nerve Blocks in Emergency Medicine: Supraclavicular Brachial Plexus Nerve Block
Uses in the Emergency Department:
Plexus Nerve Block Uses ... Emergency Department: reduction ... fractures and elbow dislocations ... distal to the shoulder ... ultrasound #anesthesia #pocus
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
Skew Deviation Casey ... #Localization #ophthalmology ... #neurology #differential ... #diagnosis #ocular
Vision Loss - Differential Diagnosis
Chronic: 
  - Cornea: Scarring, Edema
  - Lens: Cataracts
Vision Loss - Differential ... Cataracts - Macula: Macular ... Painless: Lens Dislocation ... #Diagnosis #causes ... #ophthalmology
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
Young females Differential ... no light-near dissociation ... • Other causes ... #PhysicalExam #neurology ... #ophthalmology
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
Double Vision - Differential ... • Neurologic ... a mass as the cause ... Cataract/Lens Dislocation ... #Ophthalmology
Ptosis - Differential Diagnosis Framework

Ptosis (Greek- to fall) Drooping of the upper eyelid that usually results
Ptosis - Differential ... Neurogenic Ptosis - Neurologic ... Ptosis - Absence or reduction ... #Differential # ... Diagnosis #ophthalmology
Blurry Vision - Differential Diagnosis Framework

Anatomical Approach to Eye Disease:
1. Lids/Lashes
2. Extraocular Muscles/Motility
3. Conjunctiva/Sclera
4. Cornea
5. Anterior
Blurry Vision - Differential ... Ocular Adverse Effects ... edema • Lens dislocation ... #diagnosis #ophthalmology ... #causes