8 results
Tracheal Descent Sign

Paradoxical inward movement of the trachea during inspiration. Seen in this COPD patient in
Tracheal Descent Sign ... Paradoxical ... distress. ... Video via Dr. ... #pulmonary #breathing
Hoover's Sign

Hoover’s sign refers to inward movement of the lower rib cage during inspiration- instead of
hyperexpansion of the lungs ... downwards, thereby paradoxically ... Pulmonary #COPD ... #PhysicalExam #Video ... #Respiratory
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation: CNS of Respiratory ... Wall Elasticity (flail ... , Interstitial Lung ... UnremarkableLab #AA ... #differential #diagnosis
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
severity Acute Respiratory ... Distress Syndrome ... sliding COPD or ... #differential #diagnosis ... #signs #Lung #POCUS
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
- Differential Diagnosis ... gravity-dependent gradients ... Pneumonia, asthma, COPD ... hepatopulmonary syndrome ... #Differential #Diagnosis
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
• Idiopathic pulmonary ... organizing pneumonia (COP ... ), Respiratory bronchiolitis-interstitial ... Churg Strauss syndrome ... Diseases #ILD #diagnosis
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
obstruction • COPD ... • Mounier-Kuhn syndrome ... Nasal polyps and signs ... in the adjacent lung ... of the affected lung
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Interpretation Steps ... D-lactate (short bowel syndrome ... Classically” noted with pulmonary ... or restrictive lung ... disease (COPD,