43 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
Sensory Motor Reflex ... Respiration None C5 Radial ... Flexion Biceps Reflex ... NerveRoots #Levels #differential ... #diagnosis #Neurology
Dizziness - Differential Diagnosis Framework
"Tell me what you mean by dizzy without using the word dizzy."
Vertigo:
Dizziness - Differential ... • Peripheral: BPPV ... dysfunction, Meds • Reflex ... Dizziness #dizzy #Differential ... #Diagnosis #neurology
HINTS Exam - Distinguishing Central from Peripheral Vertigo
 • Head Impulse: Head thrust 10° with eyes
left, right, up and ... straight ahead, cover and ... Vertigo #diagnosis #neurology ... #bppv #comparison
Characteristics of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
 • Onset: Sudden
 • Intensity: Severe initially, often decreasing
than a minute for BPPV ... posterior canal BPPV ... horizontal canal BPPV ... signs #symptoms #comparison ... #neurology
Differentiating Benign Paroxysmal Positional Vertigo (BPPV) From Vestibular Neuritis-Labyrinthitis
BENIGN PAROXYSMAL POSITIONAL VERTIGO
 • Age: More common
Positional Vertigo (BPPV ... consistent with BPPV ... ) #Vertigo #BPPV ... Labyrinthitis #diagnosis #neurology ... #comparison
Upper Versus Lower Motor Neuron Findings

Denervation near the target muscle fibers (lower motor neuron disease) results
limb of spinal reflexes ... muscle atrophy and ... #MotorNeuron #Comparison ... Diagnosis #Table #Neurology
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
Varies • No neurologic ... position change • Neurologic ... auditory findings BPPV ... Vertigo #Algorithm #differential ... #diagnosis #neurology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
, T1 (median) Reflexes ... aracteristic "claw hand ... damage to the radial ... nerve in the radial ... Myotomes #diagnosis #neurology
Reflex Testing - Causes of Hyporeflexia and Hyperreflexia
Focal Hyporeflexia: 
 • Radiculopathy, Mononeuropathy, Polyneuropathy, Acute stroke,
Reflex Testing - ... of Hyporeflexia and ... Testing #Causes #differential ... diagnosis #table #neurology
The Neurological Evaluation of a Comatose Patient

Definition:
 • Coma: a state of unresponsiveness; the absence of
consciousness Differential ... for asymmetry and ... all four limbs and ... Pucci @neudrawlogy and ... #PhysicalExam #neurology