3025673

3025673 - Glucose [Mass/volume] in Serum or Plasma --2 hours post 75 g glucose PO

The glucose tolerance test, also known as the oral glucose tolerance test, measures your body's response to sugar (glucose). The glucose tolerance test can be used to screen for type 2 diabetes. More commonly, a modified version of the glucose tolerance test is used to diagnose gestational diabetes — a type of diabetes that develops during pregnancy. The glucose tolerance test identifies abnormalities in the way your body handles glucose after a meal — often before your fasting blood glucose level becomes abnormal. 1

A first blood sample will be drawn and your blood glucose level will be checked. Then you will be asked to drink a liquid that contains about 75 grams of sugar dissolved in water. After that, your blood will be drawn every hour for the next 2 hours. Each sample will be checked to measure the levels of glucose. 1, 2

8840

In the OMOP vocabulary 8840 is a Standard Concept that represents the unit milligram per deciliter (mg/dL)

Plausible Low Value

1

Plausible High Value

1100

Rationale

In a study on Hypoglycemic coma 3 the authors refer to a study from 1985 4, 5, that included a terminal cancer patient with a blood glucose level as low as 2 mg/dL. Given that, a plausible low value of 1 mg/dL does not seem unreasonable. Diabetic hypersmoler syndrome is diagnosed for glucose levels greater than 600 mg/dL 6, but levels exceeding 1000 mg/dL have been observed in the literature as well 7. Given that, a plausible high value of 1,100 mg/dL is suggested.