What Is the Highest Blood Sugar Level Ever Recorded

Following in my 'highest ever' posts... I also wondered if anyone knew what the highest blood glucose level ever recorded was? I've heard of some pretty scary numbers and was curious! xx
caretaker Type 1 · Well-Known Member

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i use to get bg levels of 18 first thing in the morning but now i take Levemir twice a day and it seems to do the trick
pipwizard · Well-Known Member

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Oh my that's high mine was 26 when first found out but now a nice 6.6 to 7.8 and if I'm nawty goes higher lol
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This is my first ever post...... I was told I had diabetes three day before Christmas. Had a blood reading at the gp which was 17.1. After being on tablets for two months now my reading are around the 8 mark on average. What I don't understand is that I have the same breakfast every day and my readings range from 6 to 13 two hours after breakfast. Now I doubt it's to do with food the previous day as I do a reading as soon as I wake up and they are always around 6. Any ideas people??
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Depends what you had for breakfast. High carbs, toast or cereal will cause a spike in levels.
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Cereal, but same cereal every morning.
Wake up do a test and levels are around 6 every time. Eat the same cereal every morning and some days my levels are 11 two hours after eaten and some days the levels are 13!!
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rachy0121 Type 1 · Well-Known Member

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144!!!!!! I was 32 when admitted to hospital feeling very very unwell. Someone I know was at 60!!
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Sorry I meant levels can range from 7 to 13 after eating same cereal... Not 11 to 13....
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MrsB Type 1 · Well-Known Member

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I ended up in intensive care when I was 16 with a reading of around 70mmol/l!I had tripped whilst running down a hill and concussed myself which apparently led my brain to release rather a lot of adrenaline. This was way back when hospitals didn't use meters, just the manual sticks to check the colour against a chart on the side of the stick container. Needless to say I didn't feel very well
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abs Type 1 · Well-Known Member

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33 is the highest I have recorded
paul-1976 Type 2 · Well-Known Member

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I have no idea how high I've got to-The meter showed 'HI' which is above 33 mmol or so on my meter so it's a case of "how long is a piece of string"
I'm just glad that's a thing of the past now!
SirAndy Type 2 · Active Member

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Geez that's scary 144.Can't remember what my highest has been but don't recall going past 18 or so.
Certain times at 9.5 I'm struggling so cannot imagine how you guys hitting 30+ are coping.
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nobbypan Type 1 · Active Member

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Hi I have been in the forty's in the old day now blood testing machine just say hi now so u never know how hi u r
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At the age of 16 and whilst I was in a coma the Bolton Royal Infirmary recorded my blood glucose in the 80s. (81 mmol)
It was a lab test measured in mmol not milligrams per desilitre.I was sick as a dog in ITU and was comatose for 4 days it was caused by a throat infection and being away from home, no doctor would prescribe antibiotics because I was not registered with them but it was not the doctor's fault. I was too scared to go home because I'd been kicked out for failing my school exams.
I am glad to say I am the luckiest person in the world to be alive, I am recovered, I am fit and healthy and pumping Apidra, I have very good blood glucose control and my blood glucose daily averages are 5.5 to 6.0 and life is much better!
mark51 Type 2 · Well-Known Member

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Hi all, mine was 39.1 when I was admitted to hospital 300 miles from home. This was after a blood test earlier in the day at home.
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I really don't know I had a couple of readings say hi and that's 33.3 and over
Type 2 diagnosed 24/01/2013.
Novomix 30, Victoza, metformin 2000mg sr (but not taking them as they play havoc with my insides,
suenjames Type 2 · Active Member

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My highest was 35.4 now its between 4 and 7 on average