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

ETIOLOGIES:
Infectious:
 • Retropharyngeal abscess
 • Acute epiglottitis
 • Peritonsillar
Stridor - Differential ... Diagnosis Framework ... #diagnosis #causes ... #pulmonary #airway ... #physicalexam
Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
organizing pneumonia (COP ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #ChestCT #Differential ... #Table #Distribution
Shock - Differential Diagnosis by Classification

Hypovolemic (Intravascular volume depletion)
 - Hemorrhagic 
   • Trauma
Shock - Differential ... Diagnosis by Classification ... Anaphylaxis - Spinal cord ... flow) - Massive pulmonary ... #Table #CriticalCare
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
centrilobular emphysema - Respiratory ... edema #Diagnosis ... #Radiology #Pulmonary ... HRCT #ChestCT #Differential ... #Table #Distribution
Causes of Pediatric Stridor - Differential Diagnosis Algorithm
Present Since Infancy with No Respiratory Distress:
 • Laryngomalacia
Present
Pediatric Stridor - Differential ... Diagnosis Algorithm ... Infancy with No Respiratory ... #Diagnosis #Algorithm ... Peds #Pediatrics #Pulmonary
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
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Chronic Dyspnea - Differential ... Diagnosis Algorithm ... Artery Disease • Stable ... • Asthma • COPD ... #Diagnosis #Algorithm
Clues to Differential Diagnosis of Central Cyanosis: Onset of cyanosis, Clubbing, Secondary erythrocytosis, Auscultation, X-ray, Echocardiography,
Clues to Differential ... Diagnosis of Central ... #Diagnosis #Central ... #Cardiology #Causes ... #Table #Comparison
Wheezing - Differential Diagnosis Framework - Not all that wheezes is asthma
Vibrations of turbulent flow against
Wheezing - Differential ... Diagnosis Framework ... associated with inspiratory ... bronchi: - Asthma/COPD ... #pulmonary #wheeze
Tachypnea - Differential Diagnosis Framework

Definitions
 • Tachypnea: Respiratory rate > 20/min, shallow breathing in adults
 •
Tachypnea - Differential ... Diagnosis Framework ... • Tachypnea: Respiratory ... • Asthma • COPD ... #Diagnosis #pulmonary