24 results
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
lung disease • Pulmonary ... Right to Left Shunt ... Septal Defect Pulmonary ... Right to Left Shunt ... Hypoventilation Syndrome
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
(assumes Room Air ... Hypoventilation Syndrome ... Right to Left Shunt ... Hepatopulmonary Syndrome ... Disease and more • Diffusion
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
obesity-hypoventilation syndrome ... VIQ mismatch and shunt ... lung diseases, pulmonary ... embolus SHUNT ... hepatopulmonary syndrome
Hepatopulmonary Syndrome - Diagnosis and Management Summary
A defect in arterial oxygenation due to a gas exchange
Hepatopulmonary Syndrome ... 1) or anatomic shunt ... Arterial blood gas (ABC ... scanning or pulmonary ... hepatopulmonary #syndrome
Causes of Dyspnea - Differential Diagnosis Algorithm
Cardiac:
 • Dysrhythmia
 • Ischemia
 • Cardiomyopathy
 • Valvular disease
Superior vena cava syndrome ... • Shunt Airway ... Pneumonia • Pulmonary ... embolism • Pulmonary ... Pleura: • Pleural effusion
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
Pulmonary Pathology ... Possible small plural effusion ... cases - Dynamic air ... Possible bilateral effusion ... Respiratory Distress Syndrome
Evaluation of Electrical Injury in the Emergency Department 

Common Injuries by System:

CNS - Seizure, coma, spinal
ED arrival MSK ... posterior shoulder - AC ... compartment syndrome ... especially with AC ... Evaluation #Diagnosis #Management
CPAP Troubleshooting Tips
1. Wrong size/style mask → try a different mask, nasal pillows
2. Trouble getting used
try a different mask ... tolerating forced air ... noise → check air ... Troubleshooting #Tips #management ... #problems #pulmonary
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
Syndromes - OnePager ... Renal Syndromes ... LVEF, pericardial effusion ... #Renal #Syndromes ... differential #diagnosis #management
Oxygen Delivery by Device

Nasal Cannula 
• Indicated for low-flow, low-percentage supplemental oxygen. 
• Flow rate of
Nonrebreather Mask ... entrainment of room air ... Venturi Mask (venti-mask ... Delivery #FiO2 #Pulmonary ... Equipment #Devices #Management