1. Get the Diabetes Forum App for your phone - available on iOS and Android.
    Dismiss Notice
  2. Guest, we'd love to know what you think about the forum! Take the Diabetes Forum Survey 2021 »
    Dismiss Notice
  3. Diabetes Forum should not be used in an emergency and does not replace your healthcare professional relationship. Posts can be seen by the public.
    Dismiss Notice
  4. Guest, stay home, stay safe, save the NHS. Stay up to date with information about keeping yourself and people around you safe here and GOV.UK: Coronavirus (COVID-19). Think you have symptoms? NHS 111 service is available here.
    Dismiss Notice
Dismiss Notice
Find support, ask questions and share your experiences. Join the community »

Type 2 Hba1c & Fasting BG

Discussion in 'Ask A Question' started by Johnscone, Oct 5, 2016.

  1. Johnscone

    Johnscone Type 2 · Newbie

    Messages:
    1
    Likes Received:
    0
    Trophy Points:
    21
    I am T2 taking 1000mg Metformin twice per day.
    My recent Hba1c was 5.5.
    My overnight fasting glucose is 7.3 to 7.5.
    Can anyone tell me why there is such a difference between my Hba1c and fasting readings?
     
  2. asparagusp

    asparagusp · Guest

    My fasting levels have been good for ages but post prandial absolutely horrendous and indeed my Hba1c so that's why there is a difference. Do more readings!
     
  3. Lazybones

    Lazybones Type 2 · Well-Known Member

    Messages:
    397
    Likes Received:
    327
    Trophy Points:
    123
    HbA1c and Fasting Blood Glucose levels are related, but not the same thing. The HbA1c is a mean average reading of your Blood/Glucose level over the previous 3 month period, where as the Fasting Blood glucose level is what your body settles back to after an overnight fasting period.
    Also it might be worth while researching both the 'Morning Phenomina or Dawn Phenomina' a common effect that raises Blood Glucose levels first thing upon waking. A much rarer thing is also the 'Symogi' effect that in many ways appears to give the same effect but is actually caused by a different body action.
     
    • Agree Agree x 1
    #3 Lazybones, Oct 5, 2016 at 12:55 PM
    Last edited: Oct 5, 2016
  4. 4ratbags

    4ratbags Type 2 · Well-Known Member

    Messages:
    3,334
    Likes Received:
    9,554
    Trophy Points:
    178
    Your HbA1c is your average glucose over a 3 month period. Your numbers sound similar to mine. I always have a high FBG but during the day they arw fine and my Hb result has held steady on 34.
     
  • Meet the Community

    Find support, connect with others, ask questions and share your experiences with people with diabetes, their carers and family.

    Did you know: 7 out of 10 people improve their understanding of diabetes within 6 months of being a Diabetes Forum member. Get the Diabetes Forum App and stay connected on iOS and Android

    Grab the app!
  • Tweet with us

  • Like us on Facebook