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What Are The Measurement Methods Of Blood Glucose Meters?
- Oct 12, 2018 -

Chemical colorimetry

Principle: Early Blood Glucose Meter with glucose oxidase colorimetry, test paper and blood reaction to change color, after the time to wipe blood droplets and then put into the blood glucose meter through the measurement of chromatographic blood sugar value.

Advantages: faster than biochemical analyzer and less blood.

Disadvantages: The earlier technology, most of the modern electrode measurement, less blood, faster measurement, so the chemical colorimetry market has been basically eliminated, the only model for the Johnson-Johnson stable.

Glucose oxidase electrode measurement method Glucose Oxidase

Principle: Blood glucose is measured by measuring the current produced by the reaction of glucose in the blood with glucose oxidase in the test paper. Most of the mainstream models on the market are glucose oxidase measurement.

Advantages: faster than biochemical and chemical methods (less than 30 seconds) and less blood volume (5 micro rise).

Appearance of various blood glucose meters

Appearance of various blood glucose meters

Below).

Disadvantages: Because the oxygen content in the air is much higher than hydrogen content, so the test paper is more susceptible to air than dehydrogenase method, so it is required to store in a closed dry environment more stringent, general test paper removed from the container to use within 5 minutes, otherwise the test paper is more likely to be damp and inaccurate measurement. The barreled test paper is generally required to be opened and the test paper removed immediately after the lid is tightened. The test paper is required to be used up within 3 months after opening.

Glucose dehydrogenase electrode measurement FAD-Glucose dehydrogenase

Principle: Blood Glucose Meter is measured by measuring the current produced by the reaction of glucose in the blood with glucose dehydrogenase in the test paper.

Advantages: In addition to the advantages of oxidase, glucose-specific, free from oxygen interference, easy to preserve, can be used to expire.

Disadvantages: slight reaction to xylose.

Glucose dehydrogenase electrode measurement PQQ-Glucos dehydrogenase

Principle: Blood glucose is measured by measuring the current produced by the reaction of glucose in the blood with glucose dehydrogenase in the test paper. The main types are Roche's superior, Sultan, OMRON 215.

Advantages: In addition to the advantages of oxidase, due to less hydrogen in the air, he also overcomes the shortcomings of oxidase is not easy to preserve, generally can be used to expire after opening the pot.

Disadvantages: dehydrogenase in addition to the blood glucose reaction, but also to the blood maltose, galactose, xylose reactions, so patients eat with the above-mentioned carbohydrates when using dehydrogenation method to measure the prone to false blood sugar, so the general hospital is not recommended to use dehydrogenation method to measure.

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