pft 1

spirometers measures
- volumes
- flow rates
which type of spirometer is considered the most accurate

water sealed spirometers (collins)
a pneumotachometer measures

flow
what other terms are used for devices that measure flow
- wright respirometer
- fleisch
what are the 2 flow ranges that a peak flow meter is available to measure
- low range= 300-400
- high range= 600-800
accuracy of peak flow measurements depends on

pt effort
describe how to identify a pt personal best peak flow measurement

isntruct pt to record every day, morning, afternoon, 2-3 days a week when asthma is under control
describe how to measure a pt's peak flow value

blow out as hard and as fast as possible
a plethymograph measures
- thoracis gas volume TGV
- functional residual volume FRV
what is the advantage of using a body box for PFT measurements

measures FRC in pt with obstructive lung disease
what are the disadvantages of using the body box for pft measurements
- unable to enter box due to phycal limitations
- claustrophobia
- unable to pant acceptably
what does the kymograph record

volume against time
what does the X-Y recorder plot

volume against flow

Author

Anonymous

80590

Card Set

pft 1

Description

pft 1

Updated

2011-04-19T06:27:21Z