how long does it take to get the results of a glucose tolerance test?
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Some will give you results the next day, but others can take up to a week, Dr. Greves says. 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 one hour after drinking the sweet beverage, MedlinePlus says.
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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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Depending on the laboratory, results can take as little as 2 working days to come back from the receipt of samples. Other laboratories may take as long as 10 working days to provide your results, it differs on a lab-by-lab basis.
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A blood test can measure the amount of glycosylated hemoglobin in the blood. The glycosylated hemoglobin test shows what a person's average blood glucose level was for the 2 to 3 months before the test. This can help determine how well a person's diabetes is being controlled over time.
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You need to go to the lab one time for a 2-hour glucose tolerance test. For this test: DO NOT eat or drink anything (other than sips of water) for 8 to 14 hours before your test. (You also cannot eat during the test.)
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The glucose tolerance test is done in several steps. When you arrive at your doctor's office or lab, a member of your health care team will take a sample of blood from a vein in your arm. This blood sample will be used to measure your fasting blood glucose level.
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The most common types of tests that require fasting include: Glucose tests, which measure blood sugar. One type of glucose test is called a glucose tolerance test. For this test you will need to fast for 8 hours before test.
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We estimate as a general rule you will receive your results within 6 - 8 weeks from receipt at the laboratory, however during exceptionally busy periods this may be up to 12 weeks.
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Your GP will let you know how long your test result should take to come back from the lab, and they will also tell you how to find out the result of your test. However, if you don't hear anything within two weeks, give your GP a call - sometimes results get lost.
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Results from the urea breath test or a stool antigen test are usually available within a few hours. Results from a blood antibody test are usually available within 24 hours. Results from biopsy samples obtained by endoscopy are usually available within 48 hours.
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How long does it take for my doctor to receive my test results? Routine blood tests are usually sent to GPs within 48 hours. However more specialised testing can take several days. Speak with your doctor for more details prior to your test.
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Oral glucose tolerance test. For this test, you fast overnight, and the fasting blood sugar level is measured. Then you drink a sugary liquid, and blood sugar levels are tested periodically for the next two hours. A blood sugar level less than 140 mg/dL (7.8 mmol/L) is normal.
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The fasting glucose tolerance test is the simplest and fastest way to measure blood glucose and diagnose diabetes. Fasting means that you have had nothing to eat or drink (except water) for 8 to 12 hours before the test.
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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.
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This allows us to get lab results in approximately 30-60 minutes. Additional tests that are referred out may take 2-3 days or even a week.
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Remember what your A1C measures: your average blood sugars over the past three months. The good news is that if your A1C is on the high side, say, 10% or higher, it will likely start to drop within two to three months (in other words, the higher it is, the faster it comes down).
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Results will be returned to your provider 5-10 business days after they are received by the lab.