53 results
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... Abscess Pathophysiology ... degrees • Chills, night ... CXR upright or lat ... #Abscess #pulmonary
Cystic Lung Disease
Upper Lobe Predominant: 
Langerhans Cell Histiocytosis, Pneumocystis Jiroveci, Hypersensitivity Pneumonitis, Neurofibromatosis Type 1, Paracoccidioidomycosis,
Cystic Lung Disease ... Ehlers-danlos Syndrome ... Lymphangioleiomyomatosis, Light ... nickmmark #Cystic #Lung ... #differential #diagnosis
Multifocal Atrial Tachycardia (MAT)
• At least 3 different P wave morphologies: 
• Rate 100-180
• Irregular 
Etiology
morphologies: • Rate ... Secondary to chronic lung ... • Hypoxia • Pulmonary ... • Oxygen • Treatment ... MAT #Cardiology #Diagnosis
Lung Abscess
Microbiology:
 • Polymicrobial 
 • Anaerobes (most common) 
Clinical: 
 • Indolent symptoms that evolve
Lung Abscess Microbiology ... production • Night ... , hemoptysis Treatment ... #Abscess #Diagnosis ... #Pulmonary #Clinical
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
- Differential Diagnosis ... • Interstitial lung ... disease • Pulmonary ... Hypoventilation Syndrome ... #Differential #Diagnosis
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
Pulmonary Pathology ... Respiratory Distress Syndrome ... sliding Pulmonary ... Extremities - Right ... #differential #diagnosis
Hantavirus
Pathogen: Hantavirus - Rodents are the primary reservoir
Transmission:
 • Shed in the urine, feces, saliva of
cellars, barns and lake ... Cardiopulmonary Syndrome ... +/- diarrhea Diagnosis ... #management #treatment ... #microbiology #infectiousdiseases
Fat Embolism Syndrome
Trauma to the long bone or pelvis accounts for —9096 of cases. The diagnosis
Fat Embolism Syndrome ... Trauma to the long ... Pathophysiology ... onset widespread pulmonary ... Fat #Embolism #Syndrome
Right-Sided Heart Failure - Differential Diagnosis Algorithm
Cardiac Causes - Rule out Left-Sided Heart Failure (Most Common):
- Differential Diagnosis ... • Diffuse Lung ... Respiratory Distress Syndrome ... • Chronic Lung ... #Differential #Diagnosis
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation Syndrome ... Hepatopulmonary Syndrome ... Embolism, Obstructive Lung ... , Interstitial Lung ... #differential #diagnosis