Testing With Control Solution:
Control Solution Testing Precautions:
- OneTouch Verio® Control Solution is used to check that the meter and test strips are working together properly and that the test is performing correctly. (Control solution is available separately.)
- Note:
- Use only OneTouch Verio® Level 3 Control Solution or OneTouch Verio® Level 4 Control Solution with your OneTouch Verio Flex® Meter. Either level can be used to check your system.
- When you first open a new vial of control solution, record the discard date on the vial label. Refer to the control solution insert or vial label for instructions on determining the discard date.
- Tightly close the cap on the control solution vial immediately after use to avoid contamination or damage.
- For more information on testing:
- CAUTION:
- Do Not swallow or ingest control solution.
- Do Not apply control solution to the skin, eyes, ears or nose as it may cause irritation.
- Do Not use control solution after the expiration date (printed on the vial label) or the discard date, whichever comes first, or your results may be inaccurate.
When To Do A Control Solution Test:
- When you open a new vial of test strips.
- If you suspect that the meter or test strips are not working properly.
- If you have had repeated unexpected blood glucose readings.
- If you drop or damage the meter.
Preparing Your Meter For A Control Solution Test:
1. Insert a test strip to turn the meter on.
2. Wait for the flashing blood drop icon 
to appear on the display.
3. Press and hold ↑ or ↓ until the control solution icon 
appears on the display.
Preparing The Control Solution:
1. Before removing the cap, shake the vial gently.
2. Remove the vial cap and place it on a flat surface with the top of the cap pointing up.
3. Squeeze the vial to discard the first drop.
4. Wipe both the tip of the control solution vial and the top of the cap with a clean, damp tissue or cloth.
5. Squeeze a drop into the small well on the top of the cap or onto another clean, non-absorbent surface.
Applying The Control Solution:
1. Hold the meter so that the side edge of the test strip is at a slight angle to the drop of control solution
2. Touch the channel on the side of the test strip to the control solution
3. Wait for the channel to fill completely
Viewing Your Control Solution Result:
- After the control solution is applied, the meter will count down until the test is complete. Your result is displayed along with the date, time, unit of measure, and
(for control solution) and stored in the meter. - Control solution results can be seen when reviewing past results on the meter.
- CAUTION: Make sure you press and hold ↑ or ↓ until the control solution icon
appears before you begin a control solution test. Invalid results may be logged into your history if you applied control solution to the test strip without following the steps beginning in the Preparing Your Meter For A Control Solution Test section of this article.
Checking If The Result Is In Range:
- Each vial of test strips has both OneTouch Verio® Level 3 Control Solution and OneTouch Verio® Level 4 Control Solution ranges printed on its label. Compare the result displayed on the meter to either the OneTouch Verio® Level 3 Control Solution or OneTouch Verio® Level 4 Control Solution range printed on the test strip vial, depending on the type of control solution you used.
- CAUTION: The range printed on the test strip vial is for control solution tests only and is not a recommended range for your blood glucose level.
Causes Of Out-Of-Range Results:
- Out-of-range results may be due to:
- Not following the instructions for performing a control solution test.
- Control solution is contaminated, expired, or past its discard date.
- Test strip or test strip vial is damaged, expired, or past its discard date.
- Meter, test strips and/or control solution were not all at the same temperature when the control solution test was performed.
- A problem with the meter.
- Dirt or contamination in the small well on the top of the control solution cap.
- CAUTION: If you continue to get control solution results that fall outside the range printed on the test strip vial, Do Not use the meter, test strips, or control solution. Contact OneTouch® Customer Care.
Cleaning The Control Solution Cap:
- Clean the top of the control solution cap with a clean, damp tissue or cloth.
