Testing blood sugar (glucose)
What happens if I do not apply enough blood on the test strip?
An E4 displays on the meter, indicating not enough blood was drawn into the test strip for measurement or blood was applied after the test had started. You should discard the test strip and repeat the blood sugar test.
Other categories
Check other FAQ categories by clicking on the below category names.
- General questions
- Accuracy
- Meter care and battery
- Test Strips and control tests
- Special Features
- Diabetes manager
- System-related questions
- Availability
- Data management
- Accu-Chek SmartPredict app
- Data management
- Accu-Chek SmartGuide Sensor
- Accu-Chek SmartGuide app
- Accu-Chek SmartGuide CGM Solution
- mySugr Glucose Insights
- Accu-Chek SmartGuide CGM Solution