Glucose monitors, also called glucometers, measure the amount of glucose in the blood. They are commonly used by diabetics to monitor and control their sugar intake. Some models use actual blood samples to measure glucose levels, while others use light or electronic signals to minimize discomfort. Results are usually displayed on an LCD screen, and may be saved on an internal or removable memory. Manufacturers are looking into less invasive extraction methods, such as laser and infrared, although these are still being developed.
Continuous Glucose Monitors have small sensors that determine glucose levels every few minutes. They consist of a disposable sensor and a transmitter with a display screen. The sensors are placed just under the skin and connect to the transmitter via wires or radio signals. They are used by patients with Type I diabetes, irregular glucose levels, and those who are prone to hypoglycemia or low blood sugar.
Fingerstick or intermittent glucose monitors obtain blood samples by pricking the finger with a lancet and wiping the blood onto a test strip. The monitor then reads the test strip and analyzes the sample. There is usually a three-second to two-minute interval from feeding the sample to displaying the readout. They are used for spot testing in hospitals or regular daily testing in homes.
Sample size: Choose a glucose monitor that requires smaller samples to reduce pain during extraction. Look for one with smaller lancets, or those designed to extract from other body parts to minimize discomfort on your fingertip.
Reading time: Choose a glucose monitor that displays results in 15 seconds or less. Long delays leave more room for inaccuracies and are not suitable for continuous monitoring. Look for newer models because they usually have faster processors.
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