25 results
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
Reflex Testing - Causes of Hyporeflexia and Hyperreflexia
Focal Hyporeflexia: 
 • Radiculopathy, Mononeuropathy, Polyneuropathy, Acute stroke,
Reflex Testing - Causes ... , Acute spinal cord ... Deep coma (any cause ... finding in spinal cord ... differential #diagnosis #table
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Causes of Chronic ... Artery Disease • Stable ... • Asthma • COPD ... Pneumonia • ARDS • COPD ... Diagnosis #Algorithm #Causes
Low O2 saturation that does not respond to supplemental O2
- Key diagnostic feature (sat < 85%
not respond to supplemental ... pulse oximeter causes ... CHF, pneumonia, COPD
Hyponatremia - Differential Diagnosis by Mechanism
Decr Blood Pressure (“Decr Effective Circulating Volume”) 
 - Volume depletion
e.g. pneumonia, COPD ... Differential #Diagnosis #Table ... #Causes #Sodium
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 ... skin contact with cold ... fever, fatigue, Nausea ... rheumatology #comparison #table
Gerstmann Syndrome
1) Finger agnosia - Inability to name their own fingers, affecting both sides
2) Right-left confusion
patient is still able ... to copy Causes ... : Stroke (main cause
Shock - Differential Diagnosis by Classification

Hypovolemic (Intravascular volume depletion)
 - Hemorrhagic 
   • Trauma
Anaphylaxis - Spinal cord ... exacerbation (any cause ... Classification #Table
Cardiac Stress Testing
Exercise:
 • Everyone who can exercise should!
 • They must be able to raise
• They must be able ... production to cause ... pts with severe COPD
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
pleura in severe cases ... lung sliding COPD ... submassive PE) POCUS ... #signs #Lung #POCUS