38 results
Spirometry - PFT Interpretation Algorithm

- BWH Medicine Chiefs @BrighamChiefs

#Spirometry #PFTs #Interpretation #Algorithm #diagnosis #differential #pulmonary #function
Spirometry - PFT ... Interpretation Algorithm ... #PFTs #Interpretation ... #Algorithm #diagnosis ... differential #pulmonary #function
Asthma vs COPD Presentation and Diagnosis
Asthma:
 • Epidemiology: Age usually < 45, History (personal or family)
Findings: Variably abnormal ... spirometry - FEV1 ... often normal or ... : Persistently abnormal ... spirometry - FEV1
Patterns of pulmonary dysfunction revealed by flow-volume loops. For comparison, a normal loop is shown with
comparison, a normal ... #Diagnosis #PFTs ... #Spirometry #FlowVolume ... Patterns #Comparison #Normal
Flow Volume Loops - Common Patterns
A. Normal
B. Emphysema
C. Unilateral Main Stem Bronchial Obstruction
D. Fixed Upper Airway
Normal B. ... Neuromuscular Weakness #Diagnosis ... #PFTs #Spirometry ... #FlowVolume #Loops
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 ... lower limit of normal ... Reversibility on spirometry ... PulmPEEPs #Asthma #diagnosis
Causes of Prolonged PT (INR), Prolonged PTT
 • Prolonged PT (INR), Prolonged PTT
 • Prolonged PT
• Prolonged PT ... (INR), Normal PTT ... , Normal PT (INR ... , Normal PT (INR ... #Diagnosis #Algorithm
Pulmonary Function Testing: Flow Volume Loop Patterns
 • Variable extra-thoracic obstruction - truncated or flattened inspiratory
Pulmonary Function ... and persevered FEV1 ... nickmmark #FlowVolume ... Loops #pulmonary #PFTs ... #patterns #diagnosis
Pulmonary Function Tests (PFTs) - Interpretation Algorithm
 • Normal
 • Pulmonary Hypertension, Anemia, Carboxyhemoglobinemia
 • Chest
Pulmonary Function ... Tests (PFTs) - ... Interpretation Algorithm ... • Normal • ... #diagnosis
Pulmonary Function Test (PFT) Interpretation Algorithm

Approach to PFTs:
1) Look at Flow-Volume Loop if available
2) FEV1/FVC <
Pulmonary Function ... Algorithm Approach ... available 2) FEV1 ... #Pulmonary #Function ... #Algorithm #diagnosis
Causes of Anemia with elevated Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Normal Blood Smear
 •
- Differential Diagnosis ... Algorithm Normal ... Target Cells, Normal ... WBCs - Normal ... Deficiency - Abnormal