Micro Direct Micro I Operating Manual page 17

If NHANES III or Quanjer-GLI (2012) predicted values are used,
the ethnic origin will be used according to the author's equations.
Please note the Micro I may be configured to accept height in
centimeters.
If a mistake is made, simply touch the back key to go back to the
previous entry.
When all the patient data has been entered, the following screen
will be displayed, and a spirometry test may be performed:
After performing a test, the results are displayed:
Each maneuver is quality checked for a slow start, abrupt end,
short blow, poor effort or cough according to ATS/ERS 2005
guidelines. An asterisk (*) at the end of the line denotes a result
below the lower limit of normality.
If additional indices were chosen during configuration, press the
down key to view these.
15