59 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
nerve in the radial ... axillary nerve ... Dermatomes #Myotomes #diagnosis ... #neurology #sensory ... #motor #arm #physicalexam
Critical and Emergent Causes of Neuromuscular Weakness
CRITICAL DIAGNOSES 
 - Cerebral cortex or subcortical 
 -
Causes of Neuromuscular ... - Peripheral nerve ... - Peripheral nerve ... Neuromuscular #Weakness #Differential ... #Neurology #Causes
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
palsy • Medial ... Skew Deviation Casey ... ophthalmology #neurology ... #differential # ... diagnosis #ocular
Causes of Dizziness - Vertigo - Differential Diagnosis Algorithm
True Vertigo - Illusion of Rotary Movement
Peripheral Vestibular
- Vertigo - Differential ... Diagnosis Algorithm ... oscillopsia) • Otitis Media ... symptoms/signs, ... #Causes
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Causes of Neuromuscular ... Tumor • Motor Nerves ... heavy metals), Critical ... #differential # ... diagnosis #neurology
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
Double Vision - Differential ... Clinical Pearls ... • Neurologic ... symptoms suggest ... depress when looking medially
Unilateral Fixed Dilated Pupil - Differential Diagnosis Framework
If Altered Mental Status - Consider Oculomotor (3rd cranial
Diagnosis Framework ... If Altered Mental ... Oculomotor (3rd cranial nerve ... no neurological cause ... #diagnosis #neurology
Urine Color - Differential Diagnosis
Red Urine:
 • Medical conditions: bleeding, porphyria, factitious disorder
 • Meds: rifampin,
Urine Color - Differential ... Diagnosis Red Urine ... Urine: • Any cause ... dyes typically cause ... discoloration #nephrology
Left Wrist Drop - Radial Nerve Palsy on Physical Examination

Left hand drop due to compression of
Nerve Palsy on ... nerve in its path ... sleeping as in this case ... PhysicalExam #clinical ... #msk #sports #neurology
Ear Pain (Otalgia) - Differential Diagnosis Framework

Primary Otalgia 
 - Pain that originates from the ear
Pain (Otalgia) - Differential ... Diagnosis Framework ... the following symptoms ... • Associated symptoms ... #diagnosis