26 results
Pathogens in Pneumonia

Here is a quick review of the pathogens causing pneumonia (useful for enumerating differentials
Pathogens in Pneumonia ... review of the pathogens ... smoking. structural lung ... MAC (structural lung ... #Microbiology #Causes
Causes of Pulmonary Hypertension - Differential Diagnosis Algorithm
Pulmonary Arterial Hypertension
 • Idiopathic
 • Associated with:
Causes of Pulmonary ... Diagnosis Algorithm Pulmonary ... • Valvular Lung ... Hypoxemia: • COPD ... • Interstitial Lung
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
: Interstitial lung ... diseases, pulmonary ... ventilation (V) in the lungs ... Pneumonia, asthma, COPD ... bypassing the lungs
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Causes of Hypoxemia ... Disease (Asthma, COPD ... • Interstitial lung ... Diagnosis #Algorithm #Causes ... #Pulmonary
Algorithm for Management of Acute Exacerbation of COPD (AECOPD)

Obtain workup for alternate diagnoses and relevant comorbidities:
Exacerbation of COPD ... ventilated • CXR, Lung ... respiratory viral pathogen ... newly diagnosed COPD ... Exacerbation #treatment #pulmonary
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
ILD caused by inhalation ... • Idiopathic pulmonary ... organizing pneumonia (COP ... #differential #pulmonary ... #causes
Hoover's Sign

Hoover’s sign refers to inward movement of the lower rib cage during inspiration- instead of
associated with COPD ... hyperexpansion of the lungs ... Hoovers #Sign #Pulmonary ... #COPD #PhysicalExam ... #Video #Clinical
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
Pulmonary Pathology ... pleura in severe cases ... ) Cardiogenic Pulmonary ... sliding COPD or ... sliding Pulmonary
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Most Common Causes ... obstruction • COPD ... in the adjacent lung ... of the affected lung ... growing uncommon pathogens
Rapidly Growing Mycobacterial Infections

 • Mycobacterium abscessus - Is the most pathogenic and the most likely
- Is the most pathogenic ... most likely to cause ... pulmonary infection ... with underlying lung ... It can also cause