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Troubleshooting the System
Troubleshooting Patient Results
Use this table if you observe unexpected or out-of-range patient results.
Problem Probable Cause and Solutions
The patient sample result is
not as expected
The result is inconsistent with the patient’s diagnosis,
current treatment, or past history including previous
measurements on that patient, or is inconsistent with other
values on the same specimen.
1. Ensure that you use the correct sample collection
techniques and anticoagulant, as described in Sample
Collection Devices and Anticoagulants in Section 1.
2. Ensure that you use the recommended storage,
handling, and mixing techniques.
3. Retest the sample. Ensure that the sample, especially
those from capillary tubes, has no air bubbles.
4. Check for sample movement during measurement.
5. Ensure that reagents are installed in the correct
positions on the manifold.
6. Perform a wash.
7. Perform a successful two-point calibration.
8. Retest the sample and verify the results.
* is printed next to the
result on reports
A measurement sensor does not reach the endpoint within
90 seconds (glucose within 60 seconds).
1. Retest the sample.
2. Verify that cleaning and maintenance procedures have
been performed. If not, deproteinize and condition the
sensors.
3. Ensure that you use the correct sample collection
techniques and anticoagulant, as described in Sample
Collection Devices and Anticoagulants in Section 1.
4. Check for sample movement during measurement.
5. Check the fluid in the sample path for bubbles.
6. Ensure that you use the recommended storage,
handling, and mixing techniques.
7. Check for salt deposits and leaks around the sensors.
Clean and refill sensors, if required.
8. If the problem recurs repeatedly, replace the sensor.
(Continued)