Basic Information for Glucometers - How to Choose a Unit

A glucometer (or glucose meter) is a medical device used to measure the concentration of glucose in the blood. It helps diabetics to track their blood glucose levels to ensure they remain in near-normal range. It is useful to know some basic information for glucometers before choosing one.

There are several types of glucose meters on the market but all perform the same function. They report the approximate level of blood sugar by sampling a small drop of blood on specially coated paper. By pricking the finger tip, a droplet can be collected on a disposable test strip which the meter can then analyze and display the results. Diabetics use glucometers to monitor their blood sugar, to avoid both hyperglycemia (high blood sugar) or hypoglycemia (low blood sugar). Sometimes it's mistakenly believed that people with Type 2 Diabetes do not need to use a glucometer, so long as they're eating healthy and exercising - but that's just not true. Every diabetic needs to monitor their blood sugar levels for proper self-care.

Here are the main features you should consider before selecting a unit:

Blood droplet: Older units require a larger droplet of blood (one that is ‘about to drip’. Newer units are more efficient at chemical analysis and require just a small dot.
Sample location: Check where the blood should be collected (i.e. fingertip, forearm, thigh, or toes). Traditionally, the fingertip is the sample site but some people find the use of a forearm or thigh can be less painful then the sensitive pads of the fingers.
Test Strips: These are coated with chemicals that react with glucose in the droplet of blood. Paper strips can only be used once; discs can be rotated and used for several readings. Select a unit that uses a test strip that’s within your price range. Over the years, the main expense will be for the test strips while the initial cost of the main unit is quite reasonable (some companies will even give them away for free, when you purchase their test strips).
Code: Due to the variation in batches, some models require a code to be typed in whenever a new batch of test strips is used. The code must be entered correctly or the unit may give false readings.
Size: Units range from hand-held to table-mounted units. Size does not affect accuracy so select one that is convenient for you.
Display: Look for a unit with a clear display. Backlighting of the LCD makes for easier reading. Some units will also verbally tell you the blood glucose reading, which is a convenient feature for people who may have vision problems.
Memory: Units that have a programmable clock and memory function can help track blood sugar readings over time. The more memory it has, the easier it will be to notice trends in your levels. Some units can even be connected to a computer so the results can be recorded in a spreadsheet. Regardless of whether or not your unit has memory, it's recommended that you record your readings in a log book to keep track of them.

This basic information for glucometers will hopefully give you a starting point to help you decide on a unit that's right for you. Ask if your doctor has samples that you may view or try. Your doctor can also advise you how often you need to check your blood glucose as a important part of your diabetes treatment plan. All glucose meters basically report the same information (although they have different features), so select one that will fit your budget and your preferences.