Most blood glucose testing meters sold in the market are precise and accurate since they have been heavily tested and checked by the experts in labs before approval for sale. In most circumstances, the accuracy of test reading are affected by mistakes made by consumers or users whom are doing the test. Here are 8 common mistakes that we have observed.
1. Contaminated meter or testing strip
Meters that have not been properly cleaned and contaminated with old blood may cause false high or low readings. Testing strips that have been used should be thrown away after each use. In addition, storage of strips should be secured at all times with the cap tightened.
2. Meter or testing strip not within the normal room temperature
Meters or testing strips that are exposed to either too high or too low room temperature will cause false reading. Be reminded that you should always keep all your blood testing equipments in a dry and normal environment. Avoid them from the reach of your children if possible.
3. Expired or used testing strip
Strips that have been outdated or used in previous test should be kept away whenever a new test is to be performed as they may affect the result too.
4. Uncalibrated meters
You should calibrate your meter for it to have a correct code matching the test strips you are going to use. Always remember to perform your calibration before any test to ensure reading accuracy. As some meters calibrate automatically, you may like to put this into consideration when choosing your blood glucose meter.
5. Too little or large drop of blood
Too small a drop of patient blood for testing may also give a false low reading. Patients should remain calm and relaxed at all times. In addition, there should not be an over-squeezed amount of blood too.
6. Strip not fully inserted (may sound silly but it really happens)
One most common mistake is that the testing strip is not fully inserted into the meter while performing test. Most people are usually not aware or ignorant about this. Learn more about how to correctly perform a blood glucose test using a meter.
7. Low in battery
When low in battery, the performance of the meter may be affected and thus resulted in unreliable results. In worse case, it may cause the inability to power on the device or sudden failure of the device due to dead batteries.
8. Patients with anemia or dehydration symptoms
Test conducted on patients with anemia or dehydration symptoms may face false high reading problem too.
Always bear these 8 factors or mistakes in mind before performing any glucose test at home as an undesirable false reading may be in worse case, cost a human life.