4 results
Patterns of pulmonary dysfunction revealed by flow-volume loops. For comparison, a normal loop is shown with
Patterns of pulmonary ... See text for details ... #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 ... Stem Bronchial Obstruction ... #Diagnosis #PFTs ... #Spirometry #FlowVolume ... #Loops #Patterns
Pulmonary Function Testing: Flow Volume Loop Patterns
 • Variable extra-thoracic obstruction - truncated or flattened inspiratory
Flow Volume Loop Patterns ... and persevered FEV1 ... nickmmark #FlowVolume ... Loops #pulmonary #PFTs ... #patterns #diagnosis
Pulmonary Function Test (PFT) Interpretation Algorithm

Approach to PFTs:
1) Look at Flow-Volume Loop if available
2) FEV1/FVC <
Pulmonary Function Test ... (PFT) Interpretation ... available 2) FEV1 ... /FVC < 70% (obstruction ... #PFT #Interpretation