RADIOMETER ABL800 FLEX - Page 293

ABL800 FLEX Operator's Manual 11. Troubleshooting
Analyzer messages, Continued
No. Message Interpretation Operator action
204 Westgard
Rule (R.4s)
violation
The difference between
two consecutive
measurements exceeds
4 SD. This may
indicate an inconsisten-
cy in your procedure or
an unstable analyzer.
- Verify procedure and
repeat measurement.
- Check Replacement
Status for pending
electrode replacements.
- Refer to the Quality
Control Systems Reference
Manual for detailed
evaluation procedure.
205 Westgard
Rule (4.1s)
violation
Four consecutive
measurements are
outside the mean ± 1
SD range on the same
side of the mean. A
trend or shift is indica-
ted. Patient results
should be considered
unreliable until the
problem is remedied.
- Check for excesive
electrode sensor calibration
drift.
- Check Replacement
Status for pending
electrode replacements.
- Refer to Quality Control
Systems Reference Manual
for evaluation procedure.
206 Westgard
Rule (10.x)
violation
Ten consecutive
measurements are on
the same side of the
mean. A trend or shift
is indicated. Patient
results should be con-
sidered unreliable until
the problem is
remedied.
- Check the electrode drift
during last calibration.
- Check Replacement
Status for pending
electrode replacements.
- Refer to Quality Control
Systems Reference Manual
for evaluation procedure.
207 Calibration
schedule
reminder(s)
present
One or more scheduled
calibrations are
overdue.
Check the Calibration
Status and perform any
pending calibrations.
208 Quality
control
schedule
reminder(s)
present
One or more scheduled
QC measurements are
overdue.
Check the Quality Control
Status and perform the
pending quality control.
209 Replace-
ment
schedule
reminder(s)
present
One or more scheduled
replacements are
overdue.
Check the Replacement
Status and perform any
pending replacement
actions.
Messages at
manager level
(continued)
11-11