-
Guest - w'd love to know what you think about the forum! Take the 2025 Survey »
Glucose Tolerance Test result
- Thread starter prestage
- Start Date
Squire Fulwood
Expert
- Messages
- 6,113
- Type of diabetes
- Type 2
- Treatment type
- Diet only
I am a bit error prone at the moment so I will simply cut and paste from Wikepedia.
"Fasting plasma glucose (measured before the OGTT begins) should be below 6.1 mmol/L (110 mg/dL). Fasting levels between 6.1 and 7.0 mmol/L (110 and 125 mg/dL) are borderline ("impaired fasting glycaemia"), and fasting levels repeatedly at or above 7.0 mmol/L (126 mg/dL) are diagnostic of diabetes.
The 2 hour OGTT glucose level should be below 7.8 mmol/L (140 mg/dL). Levels between this and 11.1 mmol/L (200 mg/dL) indicate "impaired glucose tolerance". Glucose levels above 11.1 mmol/L (200 mg/dL) at 2 hours confirms a diagnosis of diabetes."
"Fasting plasma glucose (measured before the OGTT begins) should be below 6.1 mmol/L (110 mg/dL). Fasting levels between 6.1 and 7.0 mmol/L (110 and 125 mg/dL) are borderline ("impaired fasting glycaemia"), and fasting levels repeatedly at or above 7.0 mmol/L (126 mg/dL) are diagnostic of diabetes.
The 2 hour OGTT glucose level should be below 7.8 mmol/L (140 mg/dL). Levels between this and 11.1 mmol/L (200 mg/dL) indicate "impaired glucose tolerance". Glucose levels above 11.1 mmol/L (200 mg/dL) at 2 hours confirms a diagnosis of diabetes."
Yorksman
Well-Known Member
- Messages
- 2,445
- Type of diabetes
- Treatment type
- Diet only
Your fasting plasma glucose of 6.1 is your starting point. It is only just out of the normal zone, by 0.1. I don't know how much you weigh but lets assume they gave you the full 75g of glucose in your drink. This obviously causes everyone's blood glucose to rise. It does so quickly and then the insulin response brings it down again. In an otherwise normally healthy person, they would expect that level to have fallen to below 7.8. Yours at 9.1 indicates that the insulin response is not what it should be but this could be due to one of a number of reasons. People within the range 7.8 to 11.0 are said to have impaired glucose tolerance. Above 11.1 is evidence of diabetes, though if using blood plasma, they should do it twice because results within individuals vary and results between individuals vary. 9.1 would not on its own mean diabetes but indicate that you are in danger of getting it.
Diet and exercise will very likely bring this down. Those diagnosed with diabetes can also bring their levels down but the difference is that the diabetic has an impaired beta cell function which starts to decline and which conventional wisdom claims cannot be reversed. This decline in the beta cell function has not started with pre diabetics and reducing levels should stop it happening. It's a sort of fix the leak before it causes a flood.
To be sure of what is happening, they should really do a HBA1c test which gives a sort of average of your past 3 months. By cutting down on carbohydrates you will lower your blood glucose and by taking more exercise you will improve your insulin response. The next time you have a OGTT, your blood glucose should drop to a lower level in that 2 hour wait. Diet and exercise does have a big impact, but you have to keep it up.
Diet and exercise will very likely bring this down. Those diagnosed with diabetes can also bring their levels down but the difference is that the diabetic has an impaired beta cell function which starts to decline and which conventional wisdom claims cannot be reversed. This decline in the beta cell function has not started with pre diabetics and reducing levels should stop it happening. It's a sort of fix the leak before it causes a flood.
To be sure of what is happening, they should really do a HBA1c test which gives a sort of average of your past 3 months. By cutting down on carbohydrates you will lower your blood glucose and by taking more exercise you will improve your insulin response. The next time you have a OGTT, your blood glucose should drop to a lower level in that 2 hour wait. Diet and exercise does have a big impact, but you have to keep it up.
