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JohnEGreen

JohnEGreen

Master
Messages
14,002
Location
Nottinghamshire
Type of diabetes
Other
Treatment type
Diet only
Dislikes
Tripe and Onions
Well I did today and what it was is if you have CKD it makes a HbA1c test unreliable as it can cause false high or low A1c's so I may have to discuss this with my GP.
 
I found out when I put the NHS app on my phone and read the test results from there and it stated one of the conditions that would invalidate the result is CKD I had never seen that or noticed it before when reading the results from GP's surgery inernet access.
 
@JohnEGreen It would be very interesting to find out whether doing just a finger-prick test for 3 months and calculating the average would give a closer reading to the HbA1c test. I only used a finger-prick test except during the first 5 years of CKD, I was never surprised by the HbA1c results. I regularly notice posters on here suggesting finger-prick tests are more reliable.
 
@Grant_Vicat
mySugr app is predicting A1C about 42 at the moment a couple of weeks ago it was 38.

One site I looked at recomends discussing the possibility of a CGM with your doctor if you have CKD I don't think my GP would agree to that.
 
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@Grant_Vicat For what it's worth, although I get at least one HbA1c check a year, I also regularly check predicted HbBA1cs from my meter's average glucose results. I find they're slightly lower than my "official" figures but the trends/patterns I see are quite consistent with them otherwise.
 
I thought maybe the fructosamine test might be an alternative then read this.

"What is Fructosamine?
Sugar (glucose) in the blood tends to stick to proteins. Fructosamine is formed when a sugar and a protein (usually albumin, but also globulin, or lipoprotein) are combined [1].
Similarly to HbA1c (glucose + hemoglobin), fructosamine is a measure of the amount of glucose in the blood. However, while HbA1c measures your 3-month average glucose, fructosamine reflects mean blood glucose over the previous 2-3 weeks. This is due to the shorter life cycle of albumin [1, 2].
The advantage of fructosamine over HbA1c is that it’s not affected by changes in red blood cells and hemoglobin caused by anemia, blood loss, or nutrient deficiencies [1].
That said, there are also drawbacks to using fructosamine. Temperature, vitamin C, bilirubin, urea, and total protein levels can all affect fructosamine levels. All conditions that increase or decrease albumin levels will also affect fructosamine [1, 3].
Fructosamine tests will not be a good measure of blood sugar control and should not be used in people who have [1, 3, 4, 5]:
thyroid disease
intestinal disease (protein-losing enteropathy)
kidney disorders (nephrotic syndrome)
liver disease
increased immunoglobulin levels (especially IgA)
Fructosamine is used less often compared to HbA1c, mainly because it’s not standardized and it’s less reliable than an HbA1c test. In addition, because there is considerable overlap between the ranges of healthy people and diabetics, it can’t be used to screen for diabetes"

https://labs.selfdecode.com/blog/fructosamine/
 
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