12 results
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Hypoxemia Differential ... Diagnosis Algorithm ... neuromuscular disease, ↓ chest ... #Hypoxia #Differential ... #pulmonary #Aa
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
- Differential Diagnosis ... Algorithm Ventilation ... Abnormalities • Chest ... #Hypoxia #Differential ... #Diagnosis #Algorithm
Hypoxemia / Hypoxia - Rapid Response Management Algorithm

Stridor - Upper airway pathology:
 • Anaphylaxis
 • Foreign
Response Management Algorithm ... MG, ALS) • ↓ chest ... compliance (e.g., flail chest ... #Hypoxia #differential ... #rapid #pulmonary
Pulmonary Embolism on POCUS Echocardiogram

Mid 30's female with chest pain/dyspnea.  Triage EKG (no prior).
on POCUS Echocardiogram ... 's female with chest ... Differential/diagnosis ... RV, McConnell's sign ... #Echocardiogram
Hyperacute Hypoxemia - Workup and Management
Differential Diagnosis: Aspiration, Flash Pulmonary Edema, Mucous Plugging, Bronchospasm, Pulmonary Embolism,
and Management Differential ... Bronchospasm, Pulmonary ... edema), Lung Exam, POCUS ... STAT CXR, CTA Chest ... , Echocardiogram
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Weakness, Loss of Chest ... Elasticity (flail chest ... UnremarkableLab #AA ... #Hypoxia #hypoxemia ... #differential #
Uncommon Causes of Noncardiogenic Pulmonary Edema (NCPE) - Differential Diagnosis Framework

High Altitude Pulmonary Edema:
 • Accumulation
Edema (NCPE) - Differential ... infiltrates on chest ... • Signs/Symptoms ... scattered crackles, chest ... edema #causes #differential
McConnell's Sign on POCUS Echocardiogram - PSAX
Positive McConnell's Sign (hypokinetic RV with apical sparing) indicates acute
McConnell's Sign ... on POCUS Echocardiogram ... highly specific for pulmonary ... infarct & acute chest ... #POCUS #Echocardiogram
McConnell's sign on POCUS Echocardiogram

An otherwise healthy male presents with pleuritic chest pain.  
Hypokinetic RV
McConnell's sign ... on POCUS Echocardiogram ... with pleuritic chest ... likely from a pulmonary ... #POCUS #Echocardiogram
McConnell's Sign on POCUS Echocardiogram

2 patients w/ different diagnoses.  Both demonstrate an apical 4-chamber view
McConnell's Sign ... on POCUS Echocardiogram ... strain related to pulmonary ... infarct or acute chest ... #POCUS #Echocardiogram