5.4 Function check with control solution
The control solution is used to test the complete blood glucose monitoring system. It is used to check that the monitor and test strips operate together correctly and whether the test is conducted correctly. You should perform a control solution test if you suspect that the measuring device or test strips may be faulty, or if you repeatedly receive unexpected blood sugar results. Also test the measuring device if it has been dropped or damaged.
The control solution is available separately. When performing the control solution test, please follow the additional instructions in the control solution user guide.
CAUTION
Never use control solution from other manufacturers. It will be impossible to check that your Beurer blood glucose monitor operates correctly with other control solutions.
Testing with control solution
1 Hold the monitor with the display facing you.
2 Insert a test strip into the monitor with the contacts first. Make sure that the front of the test strip is facing you (see "3.3 Test strips" page 11).
3 The monitor switches on automatically and shows consecutively the initial display, the ambient temperature, and the code number. The monitor is ready for a test as soon as the flashing blood drop symbol is displayed.
4 Check the code number. If the numbers are not identical, remove the test strip and code the monitor (see "4.3 Checking code number (coding)" page 14).
5 Press the M button to switch to control mode. In control mode test results are not saved and your statistics are not skewed.
6 “CTL” is shown on the display.
7 Shake the control solution well before use. Unscrew the cap and squeeze out one drop. Wipe the first drop away and squeeze out another drop.
8 Do not apply the drop directly to the test strip, otherwise the control solution remaining in the vial tip may be contaminated by contact with the test strip.
First place the drop on your fingertip or on a clean surface. Then hold the drop to the slot for taking blood on the test strip. The solution is sucked into the slot. Wipe the tip of the vial with a clean, dry paper towel.
9 When the slot is filled with solution, the monitor carries out the test. The monitor counts back for approximately six seconds. The result is shown in the display.
10 Check that the test result is within the specified range of the control solution.
The result range is printed on the test strip container.
Beurer GL30 mmol/L 21
Expected results
At room temperature the test results with the control solution should be within the range printed on the test strip container for approximately 95% of all tests.
WARNING
The results range printed on the test strip container is only applicable to the control solution. It is not a recommended value for your blood glucose level.
If the results are outside the specified range, check the following possible causes:
Cause
The code number on the display is not the same as that of the test strip container.
Measure
Code the monitor (see "4.3 Checking code number (coding)" page 14).
• You did not dispose of the first drop of control solution
• The top of the vial was not wiped clean.
• The vial was not shaken sufficiently.
Control solution has expired or is contaminated.
Control solution or monitor is too warm or too cold.
Damaged test strips
Correct the cause and repeat the test.
Repeat the test with a new vial of control solution.
Bring control solution and monitor to room temperature (+20°C to +25°C) and repeat test.
Repeat the test with a new test strip.
Old test strips
A problem with the monitor
Open a new test strip container. Repeat the test.
Contact our Customer Service department.
WARNING
If you receive repeated results outside the specified range with the control solution, do not continue using the system to measure your blood glucose level . Contact our Customer Service department.
Beurer GL30 mmol/L 22
