91 results
Spinal Cord Injury by Nerve Root Levels
Spinal Root	Sensory	Motor	Reflex
C4	Acromioclavicular Joint	Respiration	None
C5	Radial Antecubital Fossa	Elbow Flexion	Biceps Reflex
C6	Dorsal Thumb	Wrist Extension	Brachioradialis Reflex
C7	Dorsal
Respiration None C5 Radial ... L2 Anterior Medial ... L3 Medial Femoral ... Extension None L4 Medial ... differential #diagnosis #Neurology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
) Reflexes: ... Erb's Palsy is caused ... palsy" is a common cause ... Dislocation - May cause ... Myotomes #diagnosis #neurology
Causes of Urinary Tract Obstruction - Differential Diagnosis Algorithm
Upper Tract - Bladder NOT distended on ultrasound,
Causes of Urinary ... NOT distended on ultrasound ... on ultrasound, ... Diagnosis #Algorithm #Causes ... #Urology
Bell's palsy
There are many different causes of Facial Nerve Palsy. However, the commonest
cause of unilateral facial
many different causes ... the commonest cause ... Loss of Corneal Reflex ... #Bells #Palsy #Neurology
Orbicularis Reflex in an Alzheimer's Patient on Physical Exam

Alzheimer's is a degenerative, progressive and irreversible disease.
Orbicularis Reflex ... time, and can cause ... delusions and, in some cases ... upper lip in the median ... clinical #video #neurology
Hematuria Workup and Diagnosis Algorithm
 • Confirm hematuria → Urinalysis >3 RBCs/HPF, exclude mimics, repeat testing
Refer to Nephrology ... and referral to Urology ... cystoscopy • Refer ... cause not identified ... Algorithm #Workup #urology
Hoffman's sign. Even in this specific case, accompanied by a clonus outline (rhythmic contractions). The median
this specific case ... The median nerve ... the patient to relax ... Hoffmanns #Sign #Reflex ... clinical #video #neurology
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
gross hematuria Bladder ... Causes of Hematuria ... • Cystitis • Bladder ... Renal/Ureter/Bladder ... #urology #nephrology
Reflex Testing - Causes of Hyporeflexia and Hyperreflexia
Focal Hyporeflexia: 
 • Radiculopathy, Mononeuropathy, Polyneuropathy, Acute stroke,
Reflex Testing - ... Causes of Hyporeflexia ... Deep coma (any cause ... Hyperreflexia #Testing #Causes ... diagnosis #table #neurology
Median Nerve Anatomy and Function
The Median nerve is the nerve of pre-axial hand function; pinch, delicate
Median Nerve Anatomy ... and Function The Median ... The median nerve ... and thumb do not flex ... Anatomy #diagnosis #neurology