Final answer:
The code on glucose cuvettes or strips should be compared to the glucose meter's code after opening a new package and following an error code for accurate readings.
Step-by-step explanation:
The code on glucose cuvettes or strips should be compared to the code on the glucose meter after a new package is opened. This ensures that the meter is calibrated correctly for the new set of test strips or cuvettes, which may have a different calibration code than the previous set. The correct coding is critical for accurate glucose readings. It should also be checked following an error code to verify that a mismatch between the meter and the cuvettes or strips isn't causing the issue.