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