Monitoring blood glucose levels is a must for diabetics. A diabetic can die from high blood sugar levels so constantly monitoring it is important. Fortunately, a gadget for diabetics called a glucometer is available. A glucometer is a small, carry-around electronic device that is able to test blood glucose levels. This functions with test strips, which are pieces of paper coated with glucose oxidase, dehydrogenase or hexokinase. When combined with the glucose in blood, there is a change in the color of the strips. Since it is digitized, recording results over time is easy. Not only that, a glucometer is equipped with memory storage. 1

There is no excuse for every diabetic not to have a personal tester because of the different types of glucometers available in the market. A Glucometer is convenient and way cheaper than a low-end cellular phone.

25+ types of glucose meters, as reported by the United States Food and Drug Administration (FDA), are readily available on the market. Generally, they just differ in size, convenience, testing speed, amount of pain inflicted, amount of blood drawn, cost, reporting method, result storage and accuracy. 2

Skin-prick monitors

Skin-prick monitors are the most commonly used type of glucometer according to the National Diabetes Information Clearinghouse (NDIC). Most diabetics prefer this method. Using it is very simple. A blood sample is obtained from a pricked fingertip and then directed into the device. The screen of the device displays the results quickly. The results of this monitor is the most reliable and accurate if the user properly follows the instructions, the NDIC adds. 2

Continuous monitors

Basically, there are two parts that a Continuous Glucose Monitor (CGM) consists of: first, a sensor and then a wireless monitor. It must always be administered by a medical professional. There is a fluid device inserted beneath the skin covering the bicep of the arm or stomach. The sensor detects body fluids automatically and conveys a radio signal to the second device that is worn around the waist. It does not need to be reset and can operate for three days to a week at a time. "A Continuous Glucose Monitor is not as accurate and reliable as standard blood glucose meters." The NDIC reports. 2

Saliva and Tear Monitors

Saliva and tear monitors were invented because Glucometer users were unhappy with the routine of lancing the skin. Saliva from the oral cavity or tears are collected and then subjected to testing. In 2009, a small number of saliva and tear tests were conducted, but according to the University of Virginia Medical Center, the FDA does not approve prescribing it. 2

Infrared Light and Electric Current Monitors

Test strips are prone to contamination by many environmental factors, as stated by the American Diabetes Association (ADA) (i.e. hot weather, too much moisture, and handling with soiled hands) therefore increasing the probability of certain errors. Two new devices were introduced to prevent this, the Infrared Light and Electric Current Monitors. 2

GlucoWatch Biographer Monitors

This device, the GlucoWatch Biographer monitor, is attached like a wristwatch. A low-level current is sent into the skin to draw the necessary amount of blood for a test strip, according to University of Virginia. This watch repeatedly draws blood every 20 minutes for 12 hours and records the results. 2

References

1. M., Manthappa. "Monitoring Your Blood Sugars."?How to Manage Your Diabetes and Lead a Normal Life. New Delhi: Peacock, 2008. 65-69. Print.

2. http://www.livestrong.com/article/22224-types-glucose-monitors/