66 results
Low O2 saturation that does not respond to supplemental O2
- Key diagnostic feature (sat < 85%
not respond to supplemental ... pulse oximeter causes ... FiO2 Severity of symptoms ... impaired O2 delivery Symptoms ... CHF, pneumonia, COPD
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
gas equation • Causes ... Improves with supplemental ... oxygen • Causes ... Pneumonia, asthma, COPD ... not improve with supplemental
Myelopathy - Injury to the entire spinal cord - Signs and Symptoms
 • Ataxia (early sign)
entire spinal cord ... - Signs and Symptoms ... diagnosis #signs #symptoms ... #msk
Oxygen Delivery by Device

Nasal Cannula 
• Indicated for low-flow, low-percentage supplemental oxygen. 
• Flow rate of
low-percentage supplemental ... higher percentage supplemental ... retention of exhaled gases ... Venturi Mask (venti-mask ... • Uses either
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
Causes of spinal ... • Extrinsic Causes ... • Intrinsic Causes ... Lower motor neuron symptoms ... Upper motor neuron symptoms
Causes of Orthopnea - Differential Diagnosis Framework

 • Fear and Anxiety
 • Pleural Effusion
 • Ascites
Causes of Orthopnea ... • Ascites • COPD ... CNS lesion: ALS, MS ... Differential #Diagnosis #Causes
Differential Diagnosis of Syncope
First, is it syncope? History is very important for distinguishing syncope from other
syncope from other causes ... Ask about precipitating ... events, prodromal symptoms ... Common causes of ... their associated symptoms
Acute Spinal Cord Injuries: Pathogenesis and clinical findings
 • Anterior Cord Syndrome -> Anterior spinal artery
Acute Spinal Cord ... Syndrome ->Cord ... • Posterior Cord ... pathophysiology #signs #symptoms ... #msk #orthopedics
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
Cold Urticaria Prevalence ... decades of life Causes ... and duration of symptoms ... angioedema Other symptoms ... fever, fatigue, Nausea
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
findings: • Symptoms ... Causes: 1. ... Compression Symptoms ... Areflexia UMN Symptoms ... response LMN Symptoms