26 results
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

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

Stridor - Upper airway pathology:
 • Anaphylaxis
 • Foreign
pneumonia • Water: pulmonary ... MG, ALS) • ↓ chest ... compliance (e.g., flail chest ... #Hypoxia #differential ... Algorithm #rapid #pulmonary
Hyperacute Hypoxemia - Workup and Management
Differential Diagnosis: Aspiration, Flash Pulmonary Edema, Mucous Plugging, Bronchospasm, Pulmonary Embolism,
and Management Differential ... Aspiration, Flash Pulmonary ... Bronchospasm, Pulmonary ... STAT CXR, CTA Chest ... , Echocardiogram
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 ... cardiology #McConnells #sign
Hemothorax on Lung POCUS with Spine Sign

GSW to left chest.  Perisplenic window focusing on lower
POCUS with Spine Sign ... GSW to left chest ... focusing on lower chest ... Labeled Schematic ... clinical #ultrasound #Pulmonary
Venn Diagram - Does this patient have pneumonia?
Diagnosis is generally based on three lines of evidence:
evidence of a chest ... procalcitonin) - Pulmonary ... production, pleuritic chest ... pain) and signs ... (tachypnea, hypoxemia
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Weakness, Loss of Chest ... Elasticity (flail chest ... Intracardiac, Pulmonary ... #Hypoxia #hypoxemia ... #differential #
Pulmonary Embolism with IVC Thrombus In Transit

A patient presents with chest pain. Which of the following
Pulmonary Embolism ... presents with chest ... Resolution: Pulmonary ... enlargement, McConnell sign ... clinical #ultrasound #echocardiogram
McConnell's Sign on POCUS Echocardiogram - PSAX
Positive McConnell's Sign (hypokinetic RV with apical sparing) indicates acute
on POCUS Echocardiogram ... highly specific for pulmonary ... infarct & acute chest ... #POCUS #Echocardiogram ... clinical #cardiology #labeled