12 results
Spirometry - PFT Interpretation Algorithm

- BWH Medicine Chiefs @BrighamChiefs

#Spirometry #PFTs #Interpretation #Algorithm #diagnosis #differential #pulmonary #function
Spirometry - PFT ... BrighamChiefs #Spirometry ... #PFTs #Interpretation ... Algorithm #diagnosis #differential ... #pulmonary #function
Patterns of pulmonary dysfunction revealed by flow-volume loops. For comparison, a normal loop is shown with
#Diagnosis #PFTs ... #Spirometry #FlowVolume
Flow Volume Loops - Common Patterns
A. Normal
B. Emphysema
C. Unilateral Main Stem Bronchial Obstruction
D. Fixed Upper Airway
#Diagnosis #PFTs ... #Spirometry #FlowVolume
Pulmonary Function Testing: Flow Volume Loop Patterns
 • Variable extra-thoracic obstruction - truncated or flattened inspiratory
Pulmonary Function ... and persevered FEV1 ... flow with reduced FEV1 ... nickmmark #FlowVolume ... Loops #pulmonary #PFTs
Asthma vs COPD Presentation and Diagnosis
Asthma:
 • Epidemiology: Age usually < 45, History (personal or family)
exacerbations • PFT ... Variably abnormal spirometry ... - FEV1/FVC < 70% ... bronchodilator, Spirometry ... - FEV1/FVC < 70%
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 ... Approach to PFTs ... available 2) FEV1 ... #Pulmonary #Function
Thyroid Function Tests (TFTs) and Interpretation

 • TSH, Free T4, Free T3
 • T3 Uptake
 •
Thyroid Function ... Tests (TFTs) and ... DharSaty #Thyroid #Function ... #Tests #TFTs #Interpretation ... laboratory #patterns #differential
Elevated Liver Function Tests (LFTs) - Differential Diagnosis Framework
Mild (<100-500): 
 • NAFLD
 • Cirrhosis
 •
Elevated Liver Function ... Tests (LFTs) - ... Differential Diagnosis ... LouLectures #Liver #Function ... #Tests #LFTs #Differential
Abnormal Liver Function Tests - Differential Diagnosis Algorithm for Transaminitis
Hepatocellular Pattern (ALT or AST > ALP):
Abnormal Liver Function ... Tests - Differential ... Burak @kwburak #LFTs
Abnormal liver function tests algorithm.
 This figure details the initial response to abnormal liver blood tests.
Abnormal liver function ... #LFTs #Abnormal ... Liver #Enzymes #Differential