Sibelmed DATOSPIR MICRO A, User Manual, Page: 203 / 221

Chapter 7: Spirometry Technique
DATOSPIR MICRO User’s Manual 203
511-A00-MU2 • REV. 2.06
individuals is more complicated and less accessible, this procedure
cannot be performed more often than every month or whenever
the appliance is thought to be malfunctioning.”
“Table I.» Variability of spirometry in healthy patients
Variation coefficient (%)
Variables Age: 6-20* 20-70**
FVC 1.9 2.2
FEV1 2.2 2.2
FEF25-75% 6.5 4.8
FEF50 %FVC*** 5.3 4.7
* Values corresponding to 33 healthy volunteers
** Values from 20 healthy adults”
***According to ATS/ERS standardisation, parameters MEF50
is replaced by FEF50.
7.3 VALUES OF REFERENCE FOR FORCED
SPIROMETRY «SEPAR»
The DATOSPIR MICRO spirometer includes different tables
of reference that may be selected using the Customisation
programme.
Below are the equations corresponding to the SEPAR and
“ECCS.93” references. Should you require any other table, please
consult SIBEL, S.A.U.