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HbA1c versus fasting glucose — what each one tells you

Started 4 June 2024 · 17 replies · 221 hearts · read 4.6k times

PippaTruro, UK · 4 June 2024
2.1 years ago

HbA1c versus fasting glucose — what each one tells you — putting it in its own thread so it does not get lost in the check-in.

Evidence question. I would rather have an honest "we do not know" than a confident answer.

Putting this here because I do not want to be sold anything. I want to know what is actually established and where the evidence runs out.

I have read the guides on this site on this subject and they were clearer than anything else I found, and my question sits just past where they stop.

I will summarise whatever the thread concludes and add it to my notes, in case it is useful to somebody later.

74

PerduMontpellier, FR
#1

Somebody in this circle explained the difference between two of my figures in four sentences after two years of me not asking.

14

NoahHull, UK
#2

My honest experience is that most of mine have been unremarkable and that the unremarkable ones are worth keeping too.

13

FlorrieBlackburn, UK
#3

I found that a lot of what worried me was seasonal or explained by something ordinary, and having a series made that obvious.

8

MiraFacilitatorRotterdam, Netherlands
#4

Stepping in on the arithmetic: a change can be real and still be inside the variation of the test itself. Knowing which one you are looking at is a question for the person who ordered it.

22me too 3

SadieSalford, UK
#5

Something practical: I take a photograph of the printout, because I have lost two and needed both later.

13

FlossieShrewsbury, UK
#6

What Florrie described happened to me too, in a slightly different order.

The question I ask now is what the clinician would want to see next time, and it makes the following six months much clearer.

8

MarnieAyr, UK
#7

Gently disagreeing with Mira, or rather adding the other half of it.

What surprised me was how much of my anxiety came from not understanding the units rather than from the results themselves.

15me too 8

PeggyRotherham, UK
#8

I have read this twice now. Thank you for writing it.

10

LarkGalway, IE
#9

The thing I would flag is that a single out-of-range figure is usually a reason to repeat rather than a reason to panic.

11

OskarWarsaw, PL
#10

I keep a simple table and the pattern over two years is visible in a way that no appointment has ever been able to show me.

14

YannickBrussels, BE
#11

My practice puts results online and reading them before the appointment turned my appointments into conversations rather than announcements.

12

KaiVancouver, CA
#12

What I got wrong was interpreting a result myself and worrying for a fortnight before an appointment that took two minutes to reassure me.

10me too 8

HettyCambridge, UK
#13

Sitting with you on this one.

15

HéloïseGeneva, CH
#14

Something worth knowing: fasting or not fasting changed one of mine enough to matter, and nobody had told me which it needed.

12

DevManchester, UK
#15

Something I got right was booking the review and the bloods as a pair, so I never sat on a result for three weeks.

12

MiraFacilitatorRotterdam, Netherlands
#16

Speaking as a facilitator: nothing on this page is medical advice and nothing on it should change what you do before you have spoken to whoever ordered the test.

18

RomyVienna, AT
#17

What helped was learning the vocabulary, out loud, in an appointment, by asking what a word meant. Nobody minded and I stopped being lost.

14me too 4