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PFT Exam Complete Questions And Answers
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PFT Exam Complete Questions And Answers
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PFT Exam Complete Questions AndAnswers
Reasons to perform PFT CORRECT ANSWERS 1 Dx obstructive or restrictive
disease..2 evaluate causes of dyspnea 3 Assess severity of disease 4 Evauate
effectiveness of tx 5 Estimate prognosis in lung disease (staging)
Normal PFT values based on: CORRECT ANSWERS Gender, Age, *Height, (Body
size) (Race)
PFT CORRECT ANSWERS indentifies devieations from normal predicted values
Normal PFT CORRECT ANSWERS 80-120% of predicted
Mild PFT CORRECT ANSWERS 65-80% of predicted
Moderate PFT CORRECT ANSWERS 50-64% of predicted
Severe PFT CORRECT ANSWERS < 50 % of predicted
Tidal Volume (VT) CORRECT ANSWERS volume of gas (air) that moves in and out of
lungs in one breath
Inspiratory Reserve Volume (IRV) CORRECT ANSWERS volume of gas that can be
forcefully inspired after a normal VT inhalation
Expiratory Reserve Volume (ERV) CORRECT ANSWERS volume of gas that can be
forcefully exhaled after a normal VT exhalation
Residual Volume (RV) CORRECT ANSWERS volume of air remaining in the lungs after
a forced exhalation
Lung capacities CORRECT ANSWERS combinations of lung volumes
Vital Capacity (VC) CORRECT ANSWERS the volume of air that can be exhaled after a
maximum inspiration.
VC = CORRECT ANSWERS IRV+VT+ERV
Forced Vital Capacity (FVC) CORRECT ANSWERS exhalation is done as rapidly as
possible..Evaluates both large and small airways..Effort dependent..repeast 3 FVCs
with variation no greater than 5%
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