
81-1
81.1 Ventilation
is chapter deals mainly with spirometry, i.e., with the measurement of volumes and ows associ-
ated with respiration. Spirometric tests (which embody useful information about parameters related to
pu
lmonary
fu
nction)
ar
e
o
en
us
ed
fo
r
di
agnostic
pu
rposes
in co
njunction
wi
th
ot
her
me
asurements
.
Fi
gure
8
1
.1 a
nd
T
able
8
1
.1 s
how
s
pirometric
q
uantities
o
f
c
linical
i
nterest
[
1]
.
e cl
assication
of sp
irometric
in
struments
ma
y
be ba
sed
on di
erent
cr
iteria
. Fo
r
ex
ample,
on
e
ma
y
co
nsider
op
en-circuit
de
vices
(t
he
su
bject
ta
kes
a fu
ll
in
spiration
or ex
piration
be
fore
co
nnecting
to th
e
me
ter)
an
d
cl
osed-circuit
de
vices
(t
he
su
bject ...