2.2.2 Evaluating Pulmonary Function Tests Flashcards
Label this graph
What type of curve would a fixed major airway obstruction yield?
A person with what kind of disease would yield this PFT?
Obstructive pulmonary defect (Asthma, COPD, etc)
What is wrong with this PFT?
Early termination
What is the main criteria to determine and obstructive pulmonary defect?
FEV1/FEV ration < 5th percentile of normal
What is wrong with this test?
Hesitation on the start
Is the bronchodilator response capable of differentiating COPD from asthma?
No it has never been able to show that.
What is the DLco?
What is wrong with this test?
This test is submaximal effort
What can yield an increased DLco?
Describe this PFT
This is referred to as the ‘knee’ it is normal in young non-smokers
A person with this PFT would be said to have what type of disease?
Restrictive pulmonary defect
What can yield a decreased DLco?
How would you say this Pulmonary Function Test (PFT) went?
This is a good test. Normal
What is the current method to measure lung volume?
Plethysmography - The body box this calculates the RV
What are the characteristics of a mixed pulmonary defect?
What are the main criteria for determining a restrictive pulmonary defect?
What is wrong with this PFT?
Coughing towards the end
What is the American Thoracic Society Acceptability criteria for FVC?
What are the different types of major airway obstructions?
What are some of the indications for using a PFT?
What is the ATS Reproducibility Criteria for FVC?
What is wrong with this PFT?
Patient stopped exhaling
What type of curve would a variable intrathoracic obstruction yield?
A variable extrathoracic obstruction will yield what type of PFT?
Is this a normal PFT?
This is referred to as a rainbow curve. It is normal for young non-smoking females
