Fasting Glucose Tolerance Test Diabetes
E-mails to Christine (GlucoMenu® Nutrition Director)
Christine is a Registered Dietitian & Certified Diabetes Educator
E-mail your questions to Christine at: nutrition@GlucoMenu.com
Q. My glucose tolerance test was at 105 - how high/low is that compared to acceptable levels?
A. It depends on what type of test you had (was it a fasting glucose test or an oral glucose tolerance test?).
If it was a Fasting Plasma Glucose test, a glucose level of 100-125 indicates pre-diabetes.
Your doctor will have the test results and be able to answer questions specific to you.
The American Diabetes Association states the following:
"In order to determine whether or not a patient has pre-diabetes or
diabetes, health care providers conduct a Fasting Plasma Glucose Test
(FPG) or an Oral Glucose Tolerance Test (OGTT). Either test can be used
to diagnose pre-diabetes or diabetes. The American Diabetes Association
recommends the FPG because it is easier, faster, and less expensive to perform.
With the FPG test, a fasting blood glucose level between 100 and 125
mg/dl signals pre-diabetes. A person with a fasting blood glucose level
of 126 mg/dl or higher has diabetes.
In the OGTT test, a person's blood glucose level is measured after a fast
and two hours after drinking a glucose-rich beverage. If the two-hour
blood glucose level is between 140 and 199 mg/dl, the person tested has
pre-diabetes. If the two-hour blood glucose level is at 200 mg/dl or
higher, the person tested has diabetes."
Christine Carlson, MS, RD, BC-ADM, CDE
GlucoMenu Nutrition Director
Christine Carlson, Registered Dietitian &
Certified Diabetes Educator