HemoCue Plasma/Low Hb Manual De Funcionamiento página 18

Symptom
Measurement on control mate-
rials are out of range — either
too high or too low.
Measurement on samples are
higher or lower than antipici-
pated.
Explanation
1. The microcuvettes are beyond their expiry
date, damaged or have been improperly
stored.
2. The optical eye of the microcuvette is con-
taminated.
3. The controls are beyond their expiry dates or
have been improperly stored.
4. The control has not been mixed properly
and/or is not at room temperature.
5. The microcuvette has not been placed in the
photometer within 60 seconds of filling.
6. Air bubbles in the microcuvette.
7. The optical parts are dirty.
8. The control is not suitable for use with the
HemoCue Plasma/Low Hb system.
9. The calibration of the photometer has been
changed.
1. Improper sampling technique.
2. The microcuvettes are beyond their expiry
date, damaged or have been improperly
stored.
3. The optical eye of the microcuvette is con-
taminated.
4. The sample has not been mixed properly.
5. Air bubbles in the microcuvette.
6. The optical parts are dirty.
7. The calibration of the photometer has been
changed.
Action
1. Check the expiry date and the storage conditions of the
microcuvettes.
2. Remeasure the control with a new microcuvette.
3. Check the expiry date and the storage conditions of the
control. Remeasure the control with a new microcuvette.
If the problem continues, contact the manufacturer of the
control.
4. Make sure that the control is mixed properly and at room
temperature. If the problem continues, contact the manu-
facturer of the control.
5. Remeasure the control with a new microcuvette.
6. Check the microcuvette for air bubbles. Remeasure the
control with a new microcuvette.
7. Clean the optical parts as described in the Maintance sec-
tion.
8. Contact your distributor for control information.
9. The photometer needs service. Contact your distributor.
1. See the Measuring section in this manual.
2. Check the expiry date and the storage conditions of the
microcuvettes.
3. Remeasure the sample with a new microcuvette.
4. Make sure the sample is properly mixed.
5. Check the microcuvette for air bubbles. Remeasure the
sample with a new microcuvette.
6. Clean the optical parts as described in the maintance sec-
tion.
7. The photometer needs service. Contact your distributor.
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