14 results
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
worsen with head position ... in semicircular canal ... Positive Hallpike ... test (posterior canal ... Positive head impulse
Positive FAST exam at the caudal liver edge

Ultrasound isn't as sensitive for solid organ injury, but
Positive FAST exam ... at the caudal liver ... value is in the positive ... Caudal Edge of the ... ultrasound_vcu #FAST #positive
Scaphoid Fractures
The scaphoid is the most commonly fractured carpal bone. Remember, if a fracture is suspected
commonly fractured carpal ... • Most common carpal ... • Both lead to carpal ... outstretched hand • Exam ... Fracture #Wrist #Carpal
Characteristics of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
 • Onset: Sudden
 • Intensity: Severe initially, often decreasing
classic posterior canal ... in horizontal canal ... labyrinthitis • Head Position ... nose) • Head Position ... worsen with head position
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
Anti-dsDNA - Rarely positive ... Anti-histone - Positive ... Discontinuation of causal ... - Anti-dsDNA - Positive ... Anti-histone - Positive
Pudendal Neuralgia
• Pudendal nerve arises from S2-S4 roots and innervates perineal structures
• Nerve is prone to
Pudendal (Alcock) canal ... nerve block • A positive ... block can help diagnose ... • Important to diagnose ... arriving at correct diagnosis
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
"waiter's tip" position ... Carpal Tunnel Syndrome ... Dermatomes #Myotomes #diagnosis
Trendelenburg Gait: Pathogenesis and clinical findings

Skeletal Pathology of the Hip
 • Arthritis
 • Congenital hip dysplasia
in the Spinal canal ... Pain • Valgus position ... symptoms #signs #diagnosis
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
disease who test positive ... 100%, then all positive ... proportion of positive ... +1 = perfect positive ... but not on the causal
Adrenal hematoma/hemorrhage on FAST exam

Adult male with RUQ/side pain after MVC. Transient prehospital hypotension.  Has
hemorrhage on FAST exam ... FAST exam done. ... Diagnosis/differential ... hemorrhage #FAST #Positive ... trauma #clinical #ultrasound