A glucose meter is a small, portable electronic device used to measure the concentration of glucose in a person’s blood. This measurement provides important information for individuals managing diabetes, helping them understand how diet, exercise, and medication affect their blood sugar levels. Accurate and consistent readings are important for effective health management and preventing complications associated with fluctuating glucose levels.
What E13 Indicates
The “E13” error code on a glucose meter signals a problem with the test strip or blood sample application, preventing a valid reading. This error indicates a technical issue, not a medical emergency related to your blood sugar level.
Why E13 Appears
An E13 error arises from issues with the test strip itself. Using an expired, damaged, or incorrectly designed strip for your meter can trigger this code. Incorrect insertion of the test strip into the meter slot can prevent proper electrical contact. Environmental factors, such as extreme temperatures or high humidity, can compromise test strip integrity.
The E13 error can occur due to problems with the blood sample. An insufficient blood volume applied to the test strip is a common cause, as the meter requires a minimum amount to conduct its analysis. If the blood sample is applied incorrectly, such as smearing it on the strip instead of allowing it to be absorbed, or if the sample is contaminated with lotion or dirt, the meter may not process a reading. Fluid or foreign material in the test strip slot can lead to an E13 error.
Troubleshooting E13
To resolve an E13 error, start by removing the current test strip and discarding it, as it may be faulty or contaminated. Obtain a new, unexpired test strip and ensure it is inserted correctly into the meter slot. After proper insertion, ensure your hands are clean and dry before performing a finger prick to obtain a fresh blood sample. Apply a sufficient amount of blood to the test strip, allowing the strip to absorb the sample fully, typically until the confirmation window is filled.
If the error persists, check the meter’s battery level; low battery power can sometimes cause various error codes. Verify that both the glucose meter and the test strips are within their recommended operating temperature range, usually specified in the user manual. Extreme temperatures can affect meter performance and test strip accuracy. If these steps do not resolve the E13 error, consult your meter’s instruction manual for specific troubleshooting guidance, as error codes can vary slightly between models and manufacturers.
When to Contact Your Doctor
If you consistently encounter the E13 error despite following troubleshooting steps, or if you are unable to obtain a blood glucose reading, contact your healthcare provider or the meter manufacturer. This is particularly important if you are experiencing symptoms of very high or very low blood sugar, such as extreme thirst, frequent urination, confusion, or dizziness, and cannot get a reading to guide your actions. Do not attempt to guess your blood sugar levels or adjust medication without an accurate reading, as this could lead to serious health complications.