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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Would Cause Increased Blood Sugar Levels Despite Taking Mealtime Insulin?

I have Type1 diabetes and i was diagnosed 8 months ago i take meal time insulin before i eat my dinner i wouldtake number 3 on the pen, two hours later i would test and it would be 120 so i thought the mealtime insulin was working then i would start to feel tired an hour later i would test and it would be high at about 194 can you tell me why its going up even with the meal time insulin even when i dont eat anymore that night?
Fri, 21 Sep 2018
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Dietitian & Nutritionist,  's  Response
Hello and Welcome,
First, were you given blood sugar guidelines? Did you see a dietitian? I truly cannot answer your question without seeing the type of insulin you are on, your blood sugar trends and your food plan.

If you were my patient, after assessing you and your medication, I could get a better idea of the issue. Your 2 hour pp is in range. I don't know if you are dipping too low and then overcompensating.

Another reason could be the Dawn Phenomenon related to the shift in hormones during the evening. I do not know your routine, but your insulin may not be holding you as long as needed.

To tease out the cause keep a log of your meds, blood sugar and meals for one week and ask your doctor if you need a med adjustment and a referral to a dietitian if you have not already seen one. A dietitian can go over a nutrition plan that work with your blood sugar to keep it stable and complications to a minimum.

There is a lot to learn about avoiding future problems when you have diabetes, please make an appointment to learn more by talking to a dietitian. Respectfully, Kathryn Shattler, BS,MS,RDN
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What Would Cause Increased Blood Sugar Levels Despite Taking Mealtime Insulin?

Hello and Welcome, First, were you given blood sugar guidelines? Did you see a dietitian? I truly cannot answer your question without seeing the type of insulin you are on, your blood sugar trends and your food plan. If you were my patient, after assessing you and your medication, I could get a better idea of the issue. Your 2 hour pp is in range. I don t know if you are dipping too low and then overcompensating. Another reason could be the Dawn Phenomenon related to the shift in hormones during the evening. I do not know your routine, but your insulin may not be holding you as long as needed. To tease out the cause keep a log of your meds, blood sugar and meals for one week and ask your doctor if you need a med adjustment and a referral to a dietitian if you have not already seen one. A dietitian can go over a nutrition plan that work with your blood sugar to keep it stable and complications to a minimum. There is a lot to learn about avoiding future problems when you have diabetes, please make an appointment to learn more by talking to a dietitian. Respectfully, Kathryn Shattler, BS,MS,RDN