RETRYCAL
One or more of the calibration maneuvers differed
from the average by more than 0.5%. The existing
calibration factor is not updated.
TOO.SHORT
During FVC:
the maneuver was less than 3 seconds
long. The patient should inhale more deeply and
exhale longer.
During MVV:
The maneuver was less than 6
seconds long. The patient should continue longer.
WEAK TRY
Low flow effort. To correct this, the patient should
blast out harder.
50