DPT-772: PFTS LECTURE EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS
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Course
DPT 772
Institution
DPT 772
DPT-772: PFTS LECTURE EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS
PFTs are used from a
diagnostic and plan of care standpoint
PFTs provide information about
integrity of the airways or airway structure
function of respiratory musculature or ventilatory pump process
condition of lun...
function of respiratory musculature or ventilatory pump process
condition of lung tissue
A thorough evaluation with PFTs includes measure of
lung volume and capacities
gas flow rates
gas diffusion
gas distribution
There are 3 pulmonary classifications. What are they?
obstructive
, restrictive
combined/mixed
Individuals with obstructive pulmonary diseases have trouble getting air
out
Individuals with restrictive pulmonary diseases have trouble getting air
in
Individuals with combined or mixed pulmonary diseases have trouble
with a little bit of both
Spirometry Technique
maximal inhalation followed by maximal exhalation, measuring volume of air and time
Spirometry Data Obtained
FVC, FEV1, FEV1/FVC, VC
Diffusing Capacity of the Lung for CO Technique
Inhalation of fixed concentration of CO and helium, breath holding for 10 sec, then
expiration with measurement of end-tidal CO and helium
Diffusing Capacity of the Lung for CO or DLCO looks at the ability for the
transfer of carbon monoxide, specifically the ability of the lung to transfer gas from the
inhaled air to the red blood cells
Why do we look at CO?
has 210 times more affinity to bind than oxygen
Diffusing Capacity of the Lung for CO Data Obtained
Uptake and diffusing capacity of CO
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