36 results
Primary Downbeat Nystagmus on Ocular Examination

Primary downbeat nystagmus, most evident on looking down and out .
Primary Downbeat ... Examination Primary downbeat ... @bobvarkey #Downbeat ... clinical #video #physicalexam ... #neurology #ophthalmology
Peri-operative Hyperthermia - Guidelines for Crises in Anaesthesia
If prolonged or ≥ 39 C this is a
for Crises in Anaesthesia ... Phaeochromocytoma Neurologic ... for crises in anaesthesia ... #Hyperthermia #Differential ... Anesthesiology #Anesthesia
Mechanisms of Pain
Mixed - Nociceptive/Neuropathic
Nociceptive - Tissue Damage
 - Visceral - (From organ/cavity lining) Poorly localized,
• Complex regional ... Pain #Mechanisms #Neurology ... #Differential #
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
• S - Saddle anesthesia ... constipation Differential ... in the perianal region ... Equina #syndrome #differential ... diagnosis #causes #neurology
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
saddle (perineal) anesthesia ... Myotomes #diagnosis #neurology ... sensory #motor #leg #physicalexam
Migraine with Aura
Diagnostic Criteria (ICHD-3):
A) At least 2 attacks fulfilling criteria B and C:
B) One or
Weakness • Retinal ... Pins & needles, Paresthesia ... diagnosis #criteria #neurology
Peripheral Edema - Differential Diagnosis Framework for Lower Extremity Edema

Edema occurs when any of the following
Peripheral Edema - Differential ... Syndrome • Complex regional ... Peripheral #Edema #differential ... Lower #Extremity #PhysicalExam
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
Young females Differential ... #Adies #Pupil #PhysicalExam ... #neurology #ophthalmology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
regimental badge" anesthesia ... Myotomes #diagnosis #neurology ... sensory #motor #arm #physicalexam
Downbeat Nystagmus on Physical Exam

65 year old female with new walking difficulty and dizziness. Why downbeat
Downbeat Nystagmus ... Why downbeat nystagmus ... movement causes downbeat ... #Nystagmus #PhysicalExam ... ophthalmology #neurology