9 results
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity ... Reflexes: • ... Syndrome - Low back pain ... Commonly caused ... sensory #motor #leg #physicalexam
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity ... Dermatomes and Myotomes ... , T1 (median) Reflexes ... #diagnosis #neurology ... sensory #motor #arm #physicalexam
Marcus Gunn Pupil - Relative Afferent Pupillary Defect (RAPD)
Definition: Afferent loop of the pupillary light reflex
Pupil - Relative Afferent ... pupillary light reflex ... nerve* (main cause ... Retina, Macula Main ... #Defect #RAPD #neurology
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Leg Pain - Differential ... Limb ischemia • Aortic ... refill - Poor pulses ... #differential # ... #msk #physicalexam
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
- Emergency Causes ... constipation Differential ... Equina #syndrome #differential ... #diagnosis #causes ... #neurology
The Neurological Evaluation of a Comatose Patient

Definition:
 • Coma: a state of unresponsiveness; the absence of
consciousness Differential ... Possible responses to pain ... Casey Albin MD @ ... caseyalbin #PhysicalExam ... #neurology #comatose
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
Cord Disorders - Differential ... continence • Pain ... Non-compressive Spinal Cord Causes ... dysfunction • Abnormal reflexes ... #differential
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Vasculitides - Differential ... tract, and often causes ... diminished, or tender pulses ... extremities, upper extremity ... , testes -> pain
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
Spasticity - Reflexes ... or without back pain ... • Infectious causes ... for brain and/or optic ... #differential