Glucometer: what it is, types, which is better to choose

Glucometer is a device for measuring blood sugar. People with diabetes mellitus use it daily. Also this device is used by athletes. Such equipment is easy to use. Measuring blood parameters, a person conducts independently at home or in any convenient place. Let's consider the types of glucometers and advice on the choice.

Types of glucometers

For home use, invasive glucometers are purchased. In order to take a blood test for analysis, you need to prick your finger and use test strips. Non-invasive glucometers are larger and more expensive. They are used in medical facilities and laboratories.

Types of glucometers for home use:

• A photometric glucometer records how the color of blood changes on a test strip. It has a reagent on it, which acquires a certain color depending on the concentration of glucose. The device memory contains the data of the scale of color change of the strip. The device compares the color of the test strip with the database and gives the result in the form of a number. These devices are sensitive to temperature fluctuations, shocks and falls. They are not characterized by increased accuracy.
• Electrochemical glucometers determine the glucose content in the blood by the strength of the electric current. In response to the glucose content in the test strip, a reaction occurs with the release of electric current, which is monitored by the device. Electrochemical glucometers are the most common. They are durable and reliable. Such equipment can be taken with you.
• Biosensor glucometers are non-invasive. There is no need to prick your finger. The content of glucose is checked using an optical, thermal, ultrasonic or electromagnetic method. However, the accuracy of the results in such a study is low.

How to choose a glucometer

Pay attention to such criteria:

• The accuracy of measurement should be with an error that does not exceed 15-20% compared to the data from the laboratory. The functionality of the device for simple measurements can be basic or advanced.
• There are models with additional options: data transfer to a smartphone, setting individual limits of readings, diary of results and more.
• In terms of memory capacity, the standard of glucometers is not less than 250 measurements.
• A good package of the device, if it comes with a lancet for punctures and test strips.
• If the user has poor eyesight, choose a model with a larger screen and large fonts. It is good if there is a backlight.
• The dimensions of the glucometer differ from where it will be used. If it is needed for home use, the size can be increased. To take the device with you, it is important that it is compact and lightweight.
• Glucometers differ in terms of the volume of blood needed for analysis. If it is a device for a child, the device should be designed for 1 µL or less.
• The ability to synchronize the glucometer with a computer or smartphone is necessary if you need to keep a diary and transmit data to the attending physician.
• It is convenient if the glucometer has automatic calibration, which separates indicators by plasma or capillary blood.

Choosing a glucometer, you can study the information on the official websites of manufacturers. Reviews of specific models of devices on the Internet will help to determine which device is more suitable and how it works in practice.