38 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Motor Function Shoulder ... spared in this injury ... Carpal Tunnel Syndrome ... Anterior Shoulder ... Myotomes #diagnosis #neurology
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
capitate ("apple") should ... tea cup") which should ... , median nerve injury ... #Orthopedics #Sports ... #MSK
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
• Due to injury ... onto outstretched hand ... injuries: distal radius ... #Orthopedics #Sports ... #MSK
Causes of acute kidney injury (AKI). AKI is classified into pre-renal, renal, and post-renal causes. Renal
kidney injury (AKI ... AKI should be considered ... Acute #Kidney #Injury ... #Differential # ... #Sites #Nephrology
Reflex Testing - Causes of Hyporeflexia and Hyperreflexia
Focal Hyporeflexia: 
 • Radiculopathy, Mononeuropathy, Polyneuropathy, Acute stroke,
of Hyporeflexia and ... Acute spinal cord injury ... in spinal cord injury ... #differential # ... diagnosis #table #neurology
Causes of Hypokalemia - Differential Diagnosis Algorithm
Defining the cause of hypokalemia starts by measuring urinary K
- Differential ... of hypokalemia starts ... Clinicians should ... • Skin and/or ... #nephrology #potassium
Left Wrist Drop - Radial Nerve Palsy on Physical Examination

Left hand drop due to compression of
Examination Left hand ... sleeping as in this case ... to compression and ... #orthopedics #msk ... #sports #neurology
Acute Kidney Injury - AKI Workup Algorithm and Differential Diagnosis
Baseline Investigations: full blood count with differential,
Acute Kidney Injury ... osmolarity If cause ... Acute #Kidney #Injury ... #Diagnosis #nephrology ... #causes
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Causes of Neuromuscular ... Demyelinating Disease (MS ... Phrenic nerve injury ... #differential # ... diagnosis #neurology
Confabulation
What? Honest Lie.  
No incoming sensory information + Filling of the blanks with different information
Traumatic Brain Injury ... Disease, Anton's Syndrome ... Confabulation #differential ... #diagnosis #causes ... #neurology