High glucose above 180-230 and low A1c of 5.8

That is unusual. I’d consult with your doctor for sure. I’d likely try a new blood meter, recheck a1c lab results and consider the a1c represents the last 3 months blood average. If the high levels are new, they’ll reflect in the next a1c in 3 months. But, I would try to get those numbers down and not wait another 3 months. Do you wear a cgm?

Definitely check a new blood meter. However, are you on any new medications - especially prednisone? Have you done scans of the pancreas - where insulin is produced? If you are younger than 30 years old - it could possibly be type I diabetes. Most are diagnosed as a child - but the limit for type I is 30 years old. Many develop type II - even from a young age. Your A1C is for the past 3 months - and they do correlate that with an approx. blood glucose. Your A1C is pre-diabetic. Watch diet, but check out other causes as well. Good luck.

I replied to this same issue on another thread, and my answer there was - if you are taking the glucose readings after a meal instead of before a meal, it might explain things!

@celia16 I don't use a cgm but I had the A1c lower than 6.0 for the past 6 months. Thank you
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I HAD MY GLUCOSE ABOVE 200 IN MORNINGS AND EVENINGS BUT MY A1c BELOW 6.0 FOR THE PAST SIX MONTHS

@teno1947 as people have mentioned the A1c does show an average that corresponds to the blood sugar for a 3 month period of time. Yours has been good / below 6.0 for the past six months yet your morning and evening blood sugars are running high. It is possible that you have had undetected low blood sugars (no symptoms and no meter readings) at other times during the day that have kept the A1c down. You could try getting some other random meter readings throughout the day besides your usual morning and evening ones to see what that shows. You could also do some tests in the night during hours of sleep (like if you wake up to pee) to see what those readings are like. Sometimes weird things happen in the early hours of the morning (dawn phenomena &/or symogi effect) that can raise your fasting blood sugar. I know extra testing is a pain in the a$$ but it can shed some light on your situation.

@pht1123 thought 6.0-6.5 was prediabetic???

I am the same way. It looks like from above several of us have this condition.

I have my A1C for years from 5.6-5.9. My glucose in the AM was 130-160. My doctor said the A1C was more important so he did not treat me with anything. I check my glucose level when I wake up. And I get the same readings when I go to my PCP and other doctors.

This year I had a hospital stay. It was heart related but they found nothing wrong with my heart. Since then my glucose is under 100 in the AM and the last A1C was 53 for 2 months straight now. This surprised all my doctors being so low. They all said my heart has nothing to do with my glucose and A1C readings.

@cehunt57 Yesterday I had lab work and my glucose was 218 and my A1c went up to 7.3 from 5.7