36 results
Asthma
Chronic lung disease characterized by airway inflammation, airway and variable expiratory air flow obstruction
There are 2
obstruction: • FEV1 ... 0.70 or lower • FEV1 ... Reversibility on spirometry ... • Increase of FEV1 ... or greater in FEV
Asthma vs COPD Presentation and Diagnosis
Asthma:
 • Epidemiology: Age usually < 45, History (personal or family)
Variably abnormal spirometry ... - FEV1/FVC < 70% ... bronchodilator, Spirometry ... Persistently abnormal spirometry ... - FEV1/FVC < 70%
Patterns of pulmonary dysfunction revealed by flow-volume loops. For comparison, a normal loop is shown with
Patterns of pulmonary ... Diagnosis #PFTs #Spirometry ... FlowVolume #Loops #Patterns
Flow Volume Loops - Common Patterns
A. Normal
B. Emphysema
C. Unilateral Main Stem Bronchial Obstruction
D. Fixed Upper Airway
Loops - Common Patterns ... Diagnosis #PFTs #Spirometry ... FlowVolume #Loops #Patterns
Classic (2009) Spirometric GOLD Classification of COPD Severity Based on Postbronchodilator FEV
#Diagnosis #Pulmonary #COPD #GOLD #Staging
Classic (2009) Spirometric ... Postbronchodilator FEV ... Classification #FEV1
Pulmonary Function Testing: Flow Volume Loop Patterns
 • Variable extra-thoracic obstruction - truncated or flattened inspiratory
Flow Volume Loop Patterns ... and persevered FEV1 ... flow with reduced FEV1 ... pulmonary #PFTs #patterns
Table of Breathing Patterns and Their Associated Conditions
Apnea
Biot's respirations
Bradypnea
Cheyne-Stokes respirations	
Hyperpnea
Hyperventilation
Hypoventilation
Kussmaul respirations
Orthopnea
Paradoxic ventilation
Sighing respirations
Tachypnea
Hoover's sign

#Breathing #Patterns #Diagnosis
Table of Breathing ... Patterns and Their ... #Breathing #Patterns ... #Respirations #Table
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
there are four patterns ... low attenuation (table ... and what kind of pattern ... the most common pattern ... The cystic pattern
Lab patterns seen in Inborn Errors of Metabolism

A table of lab values compiled from UpToDate and
Lab patterns seen ... Metabolism A table ... Peds #Pediatrics #Table ... IEM #Laboratory #Patterns
Differential Diagnosis of Jaundice, Presentation Pattern #Diagnosis #EM #IM #GI #Jaundice #Pattern #LFTs #Workup #Table #Differential
, Presentation Pattern ... #GI #Jaundice #Pattern ... #LFTs #Workup #Table