Test

[Dee1960]

Can anyone tell me what this means please. Im type 2 and ive just been looking through all my test results and I'm confused by this one?

 

[KennyA]

Hi. There are a number of ways to test for glucose levels in blood. Fingerprick uses capillary blood, most HbA1cs are done using whole blood drawn from a vein, and the glucose in blood plasma can also be tested, which is what I think you've had done here.

According to Bilous and Donnelly, the relevant plasma glucose values are:

Fasting

Normal <6.1 Impaired fasting glycaemia 6.1-6.9 Diabetes >7.0

2-hour blood glucose (oral glucose tolerance test)

Normal <7.8 Impaired glucose tolerance 7.8-11.0 Diabetes >11.1

So your result shows as well inside normal range.

 

[Dee1960]

I really don't understand it? Because my mmol.mol was 6.2 with the same blood test !

 

[Duncan Mackay]

I really don't understand it? Because my mmol.mol was 6.2 with the same blood test !

mmol/mol is the European unit for the HbA1c test. The value 6.2 probably relates to units of % which is the USA unit. It is equivalent to
44 mmol/mol.

 

[Dee1960]

mmol/mol is the European unit for the HbA1c test. The value 6.2 probably relates to units of % which is the USA unit. It is equivalent to
44 mmol/mol.

No, it was 62 mmol/mol I probably didn't write it down right

 

[Dee1960]

These results came from same blood test.

 

[Duncan Mackay]

62mmol/mol corresponds to an average blood glucose level of 9.88mmol/l.

 

[Melgar]

@Dee1960 , you had two different types of tests performed on your blood. Your first test was a plasma blood test. It’s usually done after a fast. This test simply tests the amount of glucose (blood sugar) present in your blood plasma. It’s similar to taking your morning blood sugars when you wake up in the morning. At 4.2 mmol/ls your blood sugar, when they tested your blood, was well within range. It’s not really telling you much. Other than your blood sugar was at 4.2 in your blood plasma.

The second test they did on your blood was your HbA1c test. This one is more useful.This test measures your average blood sugars over a 3 month period. It does this by measuring how much glucose has attached itself to your red blood cells. At 62 mmol/Ls mol your blood sugars over 3 months averaged out at 62 and are in the diabetic range.

In short they tested how much blood sugar was in your blood plasma in that moment following a fast - Fasting blood sugars

The HbA1c tested measured the average blood sugars over a 3 month period.

It’s a little confusing as they used two different units of measurement. There is a discrepancy numbers because they are measuring different things.

Edited for clarity

 

[KennyA]

The first result posted shows the blood plasma glucose to be 4.2 mmol/litre.

The second result posted shows the HbA1c to be 62 mmol/mol.

These tests have measured different things in different ways. The first gives a snapshot result of what your blood glucose was at the point of testing. The second gives an approximation of where your blood glucose levels have been over the last three months or so.

 

[Mark Rawlinson]

I refer to it like this
your plasma (or fasting blood test (similar thing)) are a photograph such as an animal in some woods ie where and what it was doing there and then, if you take a second photo the animal may have ran away be eating something or moved, your Hba1c is more like a video compared to the photo one time the animal is there and ot walks away then eats a leaf or something. That is my own analogy anyway. As already mentioned (KennyA) they measure different things in different ways