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Welch Allyn Schiller SP-1 - Explanation of Measured Values

Welch Allyn Schiller SP-1
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Explanation
of
Measured
Values
t
-
FVC
Forced
(expiratory)
Vital
Capacity.
Volume
achieved
by
the
quickest
possible
exhalation
after
a
maximal
inhalation.
FEV
o.e/i.o/j.o
Forced
expiratory
volume.
Lung
volume
in
litres,
measured
after
0.5,1.0
or
3
seconds
forced
expiration.
FEF
Forced
Expiratory
Flow
Respiratory.
Flow
in
terms
of
differing
lung
volumes
measured
In
litres
per
second.
flow
speed
of
the
expired
air
by
25
to
75%
of
the
forced
vital
capacity
(FVC)
FEF^^
flow
speed
of
the
expired
air
by
75
to
85%
of
the
forced
vital
capacity
(FVC)
fef
m%
flow
speed
of
the
expired
air
by
25%
of
the
forced
vital
capacity
(FVC)
flow
speed
of
the
expired
air
by
50%
of
the
forced
vital
capacity
(FVC)
FEF
m
flow
speed
of
the
expired
air
by
75%
of
the
forced
vital
capacity
(FVC)
FEFj^
averaged
flow
between
0.2
and
1.2
litres
of
the
forced
expired
vital
capacity
PEF
SP-1
User's
Guide
MEF
Peak
Expiratory
Flow
Maximal
Expiratory
Flow
Page
35

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