Test of Carbohydrate Metabolism

This description aims to provide patients with some useful information on the tests which may be included as part of their health screening. The tests are explained briefly. Because reference ranges are typically defined as the range of values of the median 95% of the healthy population, it is unlikely that a given specimen, even from a healthy individual, will show “normal” values for all tests. All results should be correlated with patient’s history and clinical findings. Therefore, your physician is the best person to interpret your laboratory results. Always consult your physician.


Glucose in sufficient levels is necessary for normal body functions. The hormone insulin regulates levels of glucose in the body. Glucose levels above the reference range suggest that the patient may have diabetes mellitus. A Glucose Tolerance Test (GTT) may be used to confirm diabetes mellitus and to evaluate its severity.