32 results
Patterns of pulmonary dysfunction revealed by flow-volume loops. For comparison, a normal loop is shown with
Patterns of pulmonary ... For comparison, ... Diagnosis #PFTs #Spirometry ... FlowVolume #Loops #Patterns ... #Comparison #Normal
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
Forced vital capacity (FVC) curves comparing normal, obstructive, and restrictive disorders. Curves are as they appear
commonly available spirometers ... Diagnosis #Pulmonary #Spirometry ... Restrictive #Normal #Comparison
Asthma vs COPD Presentation and Diagnosis
Asthma:
 • Epidemiology: Age usually < 45, History (personal or family)
Variably abnormal spirometry ... - FEV1/FVC < 70% ... bronchodilator, Spirometry ... - FEV1/FVC < 70% ... #Asthma #COPD #comparison
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
Acute Kidney Injury (AKI) - Common Patterns on Urinalysis
 - Prerenal
 - ATN
 - AIN
 -
(AKI) - Common Patterns ... diagnosis #table #comparison
Comparison of Pathologic Breathing Patterns
Biot's respiration aka ataxic respiration:
 - Periodic breathing: hyperpnea (or normopnea) and
Comparison of Pathologic ... Breathing Patterns ... ) #Breathing #Patterns ... pulmonary #diagnosis #comparison
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
The fourth pattern ... low attenuation pattern ... Differential #Diagram #Comparison