17 results
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Hypoxemia Differential ... (↑Shunting), ↓Perfusion ... 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 ... Septal Defect Pulmonary ... #Hypoxia #Differential
Acute Hypoxemia - Differential Diagnosis
 • Hyperacute: Aspiration, Flash Pulmonary Edema, Mucous Plugging, Bronchospasm, Pulmonary Embolism,
Acute Hypoxemia ... - Differential Diagnosis ... Hemorrhage • Impaired Diffusion ... Sophia_Hayes_MD #Hypoxemia ... #hypoxia #Differential
Radiographic Features of Pulmonary Diseases
 - Pneumonia
 - Atelectasis
 - Emphysema
 - Pneumothorax
 - Effusion
 -
Radiographic Features of Pulmonary ... Pneumothorax - Effusion ... Emphysema - Pulmonary ... Patterns #Lung #CXR #XRay ... #ChestCT #Differential
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
Respiratory Failure - Differential ... direction leads to hypoxemia ... Respiratory #Failure #hypoxia ... #Differential # ... Diagnosis #pulmonary
Hyperacute Hypoxemia - Workup and Management
Differential Diagnosis: Aspiration, Flash Pulmonary Edema, Mucous Plugging, Bronchospasm, Pulmonary Embolism,
Hyperacute Hypoxemia ... and Management Differential ... Aspiration, Flash Pulmonary ... Bronchospasm, Pulmonary ... edema), Lung Exam, POCUS
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Intracardiac, Pulmonary ... Disease and more • Diffusion ... Defect: Pulmonary ... #Hypoxia #hypoxemia ... #differential #
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
Possible small plural effusion ... Possible bilateral effusion ... submassive PE) POCUS ... #differential # ... #signs #Lung #POCUS
Undifferentiated critical congenital heart disease: Patterns of Presentation 
Pink baby:
 • Presents at 1-6 mo
Blue baby: • Hyperoxia ... if cardiac or pulmonary ... defects most often Gray ... #presentation #Differential ... #Pink #Blue #Gray
Shock Types - Classification
State of cellular and tissue hypoxia due to: reduced oxygen delivery, increased oxygen
cellular and tissue hypoxia ... diminished tissue perfusion ... failure from massive pulmonary ... embolism or severe pulmonary ... #criticalcare #differential