Glucose test
Encyclopedia
A glucose test is a type of blood test
used to determine the amount of glucose
in the blood. It is mainly used in screening
for any prediabetes
or diabetes. In people already having diabetes, blood glucose monitoring
is used with frequent intervals in the management of the condition.
There are several different kinds of glucose tests:
After a 12 hour fast, a range of 3.9 to under 6.1 mmol/l (70.2 to 100 mg/dl) is normal (a level of 6.1 to under 7 mmol/l (100 to 126 mg/dl) is considered a sign of prediabetes
).
Blood test
A blood test is a laboratory analysis performed on a blood sample that is usually extracted from a vein in the arm using a needle, or via fingerprick....
used to determine the amount of glucose
Glucose
Glucose is a simple sugar and an important carbohydrate in biology. Cells use it as the primary source of energy and a metabolic intermediate...
in the blood. It is mainly used in screening
Screening (medicine)
Screening, in medicine, is a strategy used in a population to detect a disease in individuals without signs or symptoms of that disease. Unlike what generally happens in medicine, screening tests are performed on persons without any clinical sign of disease....
for any prediabetes
Prediabetes
Prediabetes is the state in which some but not all of the diagnostic criteria for diabetes are met. It is often described as the “gray area” between normal blood sugar and diabetic levels. While in this range, patients are at risk for not only developing type 2 diabetes, but also for cardiovascular...
or diabetes. In people already having diabetes, blood glucose monitoring
Blood glucose monitoring
Blood glucose monitoring is a way of testing the concentration of glucose in the blood . Particularly important in the care of diabetes mellitus, a blood glucose test is performed by piercing the skin to draw blood, then applying the blood to a chemically active disposable 'test-strip'...
is used with frequent intervals in the management of the condition.
There are several different kinds of glucose tests:
- Fasting blood sugar (FBS), fasting plasma glucose (FPG): 12 hours after eating
- Postprandial glucose test (PC): 2 hours after eating
- Glucose tolerance testGlucose tolerance testA glucose tolerance test is a medical test in which glucose is given and blood samples taken afterward to determine how quickly it is cleared from the blood. The test is usually used to test for diabetes, insulin resistance, and sometimes reactive hypoglycemia and acromegaly, or rarer disorders of...
: continuous testing - Random glucose testRandom glucose testRandom glucose test is a blood sugar test taken from a non-fasting subject.This test, also called random blood glucose , assumes a recent meal and therefore has higher reference values than the fasting glucose test.-Reference values:...
Fasting blood sugar
A range of 4 to 7 mmol/l (72 to 126 mg/dl) before a meal is normal. Continual fasting levels of 5.5 to 7 mmol/l (101-125 mg/dl) causes concern of possible prediabetes and may be worth monitoring. 7 mmol/l (126 mg/dl) and above means a risk of diabetes.After a 12 hour fast, a range of 3.9 to under 6.1 mmol/l (70.2 to 100 mg/dl) is normal (a level of 6.1 to under 7 mmol/l (100 to 126 mg/dl) is considered a sign of prediabetes
Prediabetes
Prediabetes is the state in which some but not all of the diagnostic criteria for diabetes are met. It is often described as the “gray area” between normal blood sugar and diabetic levels. While in this range, patients are at risk for not only developing type 2 diabetes, but also for cardiovascular...
).
Postprandial glucose
A level of < 10 mmol/l (180 mg/dl) 90 minutes after a meal is normal.See also
- Blood sugarBlood sugarThe blood sugar concentration or blood glucose level is the amount of glucose present in the blood of a human or animal. Normally in mammals, the body maintains the blood glucose level at a reference range between about 3.6 and 5.8 mM , or 64.8 and 104.4 mg/dL...
- Diabetes
- Glucose meterGlucose meterA glucose meter is a medical device for determining the approximate concentration of glucose in the blood. It is a key element of home blood glucose monitoring by people with diabetes mellitus or hypoglycemia...
- HypoglycemiaHypoglycemiaHypoglycemia or hypoglycæmia is the medical term for a state produced by a lower than normal level of blood glucose. The term literally means "under-sweet blood"...
- HyperglycemiaHyperglycemiaHyperglycemia or Hyperglycæmia, or high blood sugar, is a condition in which an excessive amount of glucose circulates in the blood plasma. This is generally a glucose level higher than 13.5mmol/l , but symptoms may not start to become noticeable until even higher values such as 15-20 mmol/l...