how do you know if your blood glucose meter is working properly?
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Check your blood sugar level with your meter at the same time that blood is drawn for lab tests. Then compare your meter's reading with the lab results. Results that are within 15 percent of the lab reading are considered accurate.
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A blood glucose test measures the amount of a type of sugar, called glucose, in your blood. Results are often ready in 1 to 2 hours. Glucose levels in a blood sample taken from your vein (called a blood plasma value) may differ a little than glucose levels checked with a finger stick.
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Oral glucose tolerance test. A blood sugar level less than 140 mg/dL (7.8 mmol/L) is normal. A reading of more than 200 mg/dL (11.1 mmol/L) after two hours indicates diabetes. A reading between 140 and 199 mg/dL (7.8 mmol/L and 11.0 mmol/L) indicates prediabetes.
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Accuracy of blood glucose meters can be affected by temperature. Blood glucose meters are designed to be at their most accurate at room temperature. If you need to test in very warm or very cold temperatures, refer to your meter's user guide to see what temperature range the meter is most accurate at.
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Most of the time, a normal result for the glucose screening test is a blood sugar that is equal to or less than 140 mg/dL (7.8 mmol/L) 1 hour after drinking the glucose solution.
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['Wash your hands before taking a fingerstick test.', 'Enter the BG (blood glucose) readings into the pump/monitor right away.', "Don't use old meter BG readings or previous sensor readings as a calibration.", 'Wait at least 15 minutes between calibration entries.']
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Share on Pinterest A random glucose test measures the amount of glucose or sugar in a person's blood. Random glucose testing measures the levels of glucose in the blood at any given point in the day. Many blood tests for diabetes involve either fasting or continuous monitoring, but this test does not.
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Accurate home test kits are also now available for purchase. Accuracy is relative when it comes to A1C or even blood glucose tests, though. The A1C test result can be up to half a percent higher or lower than the actual percentage. That means if your A1C is 6, it might indicate a range from 5.5 to 6.5.
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The hemoglobin A1c test tells you your average level of blood sugar over the past 2 to 3 months. It's also called HbA1c, glycated hemoglobin test, and glycohemoglobin. People who have diabetes need this test regularly to see if their levels are staying within range.
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Urine glucose tests are not as accurate as blood glucose tests. Many things can cause false-positives or false-negatives. For instance, the test actually reflects what your blood glucose level was a few hours earlier, so it might not be very accurate.
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['Blood glucose test. Blood glucose tests, also sometimes called blood sugar tests, are usually used to check for or monitor diabetes. ... ', 'Calcium blood test. ... ', 'Cardiac enzymes. ... ', 'Cholesterol and lipid tests. ... ', 'C-reactive protein (CRP) test. ... ', 'D-dimer test. ... ', 'Erythrocyte sedimentation rate (ESR) test. ... ', 'Folate test.']
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You will be asked to drink a liquid that contains glucose, 100 grams (g) . You will have blood drawn before you drink the liquid, and again 3 more times every 60 minutes after you drink it. Each time, your blood glucose level will be checked. Allow at least 3 hours for this test.
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Determining the level of glucose in the blood is the most accurate means of monitoring. This should be done about every 1 to 3 months (based on what your veterinarian recommends) if your cat seems well regulated.
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The test usually involves a glucose tolerance test (GTT), where you have to fast (not eat or drink) overnight. Your blood is tested, then you drink 75 gm of glucose in a sugary drink. You have your blood tested twice more – after one hour and after two hours.
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A breath ketone meter monitors ketosis by measuring the levels of acetone on the breath. Breath ketone meters (breath ketone analyzers) aren't quite as accurate as a blood ketone meter. But breath ketone meters are the next best thing if you're not keen on pricking your finger all the time.
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You should fast for up to 8 hours before having your blood glucose measured to check for diabetes or to see how well treatments are working. An alternative test for glucose level that does not require fasting measures a substance called haemoglobin A1c, which reflects average blood sugar over the previous 3 months.
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Compare this to a blood glucose test which gives you a reading of your blood glucose level at that moment. Urine glucose tests do not give you any information about low blood glucose levels, as glucose only 'overflows' into the urine when the blood glucose level gets above about 10 mmol/L.