13 results
Comparison of Pathologic Breathing Patterns
Biot's respiration aka ataxic respiration:
 - Periodic breathing: hyperpnea (or normopnea) and
Comparison of Pathologic ... Breathing Patterns ... #Patterns #Respiratory ... #pulmonary #diagnosis ... #comparison #biots
Abnormalities in Rate and Rhythm of Breathing 
Normal 
The respiratory rate is about 14—20 per min
may show this pattern ... bronchitis, and COPD ... #Breathing #Patterns ... #Pulmonary #Abnormalities ... #Abnormal #Diagnosis
Tachypnea - Differential Diagnosis Framework

Definitions
 • Tachypnea: Respiratory rate > 20/min, shallow breathing in adults
 •
Tachypnea - Differential ... Diagnosis Framework ... 20/min, shallow breathing ... • Asthma • COPD ... #Diagnosis #pulmonary
Asthma vs COPD Presentation and Diagnosis
Asthma:
 • Epidemiology: Age usually < 45, History (personal or family)
and Diagnosis Asthma ... curve, Low peak expiratory ... chest, Pursed lip breathing ... #comparison #Diagnosis ... #pulmonary
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
The fourth pattern ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... LowAttenuation #Differential ... #Diagram #Comparison
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
- Differential ... Diagnosis Framework ... Hypersensitivity Pneumonitis, Respiratory ... Diagnosis #pulmonary ... #radiology
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
Respiratory bronchiolitis ... #Clinical #Diagnosis ... #Radiology #Pulmonary ... NodularPattern #Differential ... #Comparison #Table
An Algorithm for the Diagnosis of Wheezing and Stridor

Stridor: Louder, constant-pitch sound over central airways
Wheezing: Musical
Algorithm for the Diagnosis ... Bronchoconstriction: Asthma, COPD ... Stridor #Noisy #Breathing ... #differential # ... #pulmonary
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
in ground glass pattern ... predominance: Respiratory ... bronchiolitis #Diagnosis ... #Radiology #Pulmonary ... #GroundGlass #Differential
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
Differential diagnosis ... to look at the pattern ... called cryptogenic (COP ... #Diagnosis #Radiology ... #Pulmonary #CXR