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Common problems when using glucose meters

Problem

Result

Recommendation

Test strip not fully inserted into meter

Code error

Always make sure the test strip is fully inserted

Patient sample site (e.g. fingertip) contaminated with sugar

False high reading

Always clean and dry the sample site before testing

Insufficient blood applied to strip

Er4 error code displayed

Repeat the test with a new sample

Batteries low on power

Battery error

Change batteries and test again with a new sample

Test strips stored at temperature extremes

Fales high/low reading

Store kit and components according to the instructions

Test strip vial cracked

False high/low reading

Always inspect packages for cracks and handle with care.

Error code troubleshooting

Code Message

Problem

Troubleshooting

Er1

The inserted test strip has been used or damaged.

Use a new test strip.

Er2

The meter has malfunctioned.

Do a quality control test or replace the batteries and check if the meter works properly.

Er3

Signal transmission is disrupted.

Repeat the test using a new test strip.

Er4

The blood sample applied is too small.

Repeat the test using a new test strip.

Er5

An issue has occurred calibrating the meter.

Follow these steps:

  1. Remove the test strip from the meter. 
  2. Turn off the meter (press and hold the main button for 3 seconds).
  3. Press the main button to turn on the meter again.

Blood glucose level < 10mg/dL (0.6mmol/L)

Blood glucose level is low. Repeat the test to confirm and ingest some carbohydrates to treat hypoglycemia.

Blood glucose level > 600mg/dL (33.3mmol/L)

Blood glucose level is high. Repeat the test and contact your healthcare professional./td>

 

How to store blood glucose test strips

Pay attention to the following when storing test strips:

  1. Blood glucose test strips should be stored at room temperature between 4˚C to 30˚C and at normal humidity levels (below 70%).
  2. Do not place test strips in the refrigerator.
  3. Do not pack test strips separately into several small bags, as humidity will affect the accuracy of strips.
  4. Test strips are effective for either 3-4 months after opening or until the expiration date if sealed and unopened.
  5. After opening a test strip vial, make sure to tightly close the lid again to prevent the ingress of humidity.

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