50 results
Multifocal Atrial Tachycardia (MAT)
• At least 3 different P wave morphologies: 
• Rate 100-180
• Irregular 
Etiology
Multifocal Atrial ... Secondary to chronic lung ... • Hypoxia • Pulmonary ... MAT #Cardiology #Diagnosis ... #ECG #EKG #Management
Lung Abscess
Microbiology:
 • Polymicrobial 
 • Anaerobes (most common) 
Clinical: 
 • Indolent symptoms that evolve
Lung Abscess Microbiology ... • Carbapenem (e.g ... meropenem) #Lung ... #Abscess #Diagnosis ... #Pulmonary #Clinical
Back Pain - Differential Diagnosis
Primary Back Pathology:
 • Musculoligamentous injury (a.k.a. lumbosacral strain)
 • Spondylosis (i.e.
Back Pain - Differential ... Diagnosis Primary ... Musculoligamentous injury ... spondyloarthritis (e.g ... spondyloarthritis (e.g
Liver Mass - Differential Diagnosis Algorithm
Benign Cystic 
 • Cyst
 • Polycystic Liver Disease
 • Caroli's
Liver Mass - Differential ... Diagnosis Algorithm ... • Adenoma • Abscess ... • Metastases (e.g ... Lung, Colon, Breast
Lung Nodule - Differential Diagnosis Algorithm
Nodule on > 2 Years Without a Change in Size:
 •
Lung Nodule - Differential ... Benign Neoplasm (eg ... Granuloma • Abscess ... cannonball lesions"; Eg ... #Causes #Pulmonary
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... Abscess Diagnosis ... Abscess Differential ... Vasculitis (e.g. ... #Abscess #pulmonary
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
High altitude (eg ... to neurologic injury ... Intrapulmonary shunting (eg ... intracardiac shunting (eg ... #Diagnosis #pulmonary
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... injury from pericardial ... aVR • Classic EKG ... #AVR #leadAVR #ecg ... #ekg #differential
Causes of Neutrophilia - Increased Neutrophils - Differential Diagnosis Algorithm
Infection
 • Bacterial
 • Abscess
 • Viral
Medications
Neutrophils - Differential ... Diagnosis Algorithm ... Bacterial • Abscess ... Solid Tumour (e.g ... Lung, Bladder, Colon
Noncardiogenic Pulmonary Edema - Differential Diagnosis Framework

NCPE Pathophysiology:
Noncardiogenic pulmonary edema occurs because of excessive pulmonary capillary
Edema - Differential ... Diagnosis Framework ... level <100 pg/ml EKG ... Transfusion-related acute lung ... #diagnosis #cardiology