15 results
Stridor - Differential Diagnosis Framework:
High-pitched, variable respiratory sound

ETIOLOGIES:
Infectious:
 • Retropharyngeal abscess
 • Acute epiglottitis
 • Peritonsillar
- Differential Diagnosis ... High-pitched, variable respiratory ... Ludwig's angina Trauma ... #causes #pulmonary ... #airway #physicalexam
COPD Physical Exam Likelihood Ratios
Barrel Chest - LR 1.5
Pursed Lip Breathing - LR 2.7
Reduced breath sounds
COPD Physical Exam ... LR 11.8 Early inspiratory ... #PhysicalExam # ... LikelihoodRatios #LRs #diagnosis ... #pulmonary
Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
and cardiogenic pulmonary ... organizing pneumonia (COP ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #Differential #Table
Tachypnea - Differential Diagnosis Framework

Definitions
 • Tachypnea: Respiratory rate > 20/min, shallow breathing in adults
 •
- Differential Diagnosis ... • Tachypnea: Respiratory ... rate > 20/min, shallow ... • Hyperpnea: Respiratory ... • Asthma • COPD
Shock - Differential Diagnosis by Classification

Hypovolemic (Intravascular volume depletion)
 - Hemorrhagic 
   • Trauma
- Differential Diagnosis ... Anaphylaxis - Spinal cord ... trauma (a.k.a. ... flow) - Massive pulmonary ... Classification #Table
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
centrilobular emphysema - Respiratory ... - Aspiration - Pulmonary ... edema #Diagnosis ... #Radiology #Pulmonary ... #Differential #Table
Shock Classification
Shock Definition: State of cellular and tissue hypoxia due to: reduced oxygen delivery, increased oxygen
and Dry) • Pulmonary ... embolism or severe pulmonary ... commonly due to trauma ... Classification #Types #diagnosis ... warm #wet #dry #table
Abnormalities in Rate and Rhythm of Breathing 
Normal 
The respiratory rate is about 14—20 per min
Breathing Normal The respiratory ... bronchitis, and COPD ... Breathing #Patterns #Pulmonary ... Abnormalities #Abnormal #Diagnosis ... #PhysicalExam
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
- Differential Diagnosis ... Hypersensitivity Pneumonitis, Respiratory ... Sarcoidosis, NSIP, COP ... #Differential #Diagnosis ... #pulmonary #radiology
Chest Pain - Differential Diagnosis Algorithm
Cardiovascular Causes:
 - Outflow Obstruction
     • Aortic
- Differential Diagnosis ... Infarction • Stable ... Injury • Trauma ... ChestPain #Noncardiac #Cardiology ... #Differential #Diagnosis