Blood Sugar Over 200 After Eating

Share on facebook

What Is Hyperglycemia?

Hyperglycemia, a high level of sugar in the blood, is a hallmark of diabetes. Your blood sugar levels fluctuate over the course of a day: Levels are higher right after meals, as carbohydrates are broken down into glucose (sugar), and lower after exercise, when glucose has been burned to fuel the activity. In someone who doesn't have diabetes, blood sugar levels stay within a narrow range. Between meals, the concentration of sugar in the blood ranges from about 60 to 100 mg/dl (milligrams per deciliter). After meals it may reach 120 to 130 mg/dl, but rarely goes higher than 140 mg/dl. But if you have type 2 diabetes, blood sugar levels can go much higher — to 200, 300, or even 400 mg/dl and beyond — and will go much higher unless you take the necessary steps to bring them down. Hyperglycemia Symptoms High blood sugar doesn't always produce symptoms, so it's important to check your blood sugar regularly, as indicated by your doctor. Hyperglycemia symptoms include: Frequent urination Extreme thirst Feeling tired and weak Blurry vision Feeling hungry, even after eating Causes of Hyperglycemia If you've been diagnosed with type 2 diabetes, a treatment plan is put in place to lower b Continue reading >>

Share on facebook

Popular Questions

  1. threebearcubs1224

    I was recently told I had prediabetes, three months ago my A1C was 6.4 it is now at 5.9, I check my blood sugar at home and get high fasting readings in the mornings, I do not eat or drink after 8pm and check my sugar at 6am. What should a fasting reading be? Then 2 hours after I eat I get high readings again, tonight I had a grilled cheese and vegetable soup ( 1 bowl) and it was 188, 2 hours later. Is this considered a high reading.
    I asked my doctor and she was very vague about it.

  2. t1wayne

    Hi 3bearcubs.. welcome aboard. Here's a rundown on BG (Blood Glucose) and HbA1c (glycosylated haemoglobin) ranges.
    To start... NON_D's (non-diabetics) experience the following ranges:
    BG in mg/dl: 90 to 120 all day long, about 70% of the time in the 90 to 100 range; below 100 upon waking (after fasting); below 100 before meals; 110 to 120 at the peak after a meal (for most, about 1 hour after, but anywhere from 45 to 90 minutes after - we're all different); back to the pre-meal value by 1 hour after the peak (about 2 hours after the meal). NEVER above 140 (and that high only rarely).
    For diabetics, many different organisations have many different suggested "target" ranges for BG... and all caution that each individual must determine, with their doc, what range to use for themselves. But the generic starting range is in the 80 to 140 mg/dl ballpark.
    For diagnosing diabetes, the BG levels follow - but all require a confirming test (two tests on two different days) to make the diagnosis:
    Fasting plasma BG of 100 to 125 mg/dl is "prediabetic"; 126 and over is diabetic.
    Random BG test of 200 or more is diabetic.
    OGTT (Oral Glucose Tolerance Test) with a 2 hour level of 140 to 199 is "prediabetes", 200 and over is diabetes.
    HbA1c, or glycosylated haemoglobin, is a measure of the percentage of haemoglobin that has glycosylated, or bound to sugar molecules. The more sugar there is in your blood, and the longer it's there, the more of your haemoglobin binds with it. Non-D's range from 3.4% to 5.5% HbA1c. From 5.7% to 6.4% is "prediabetes", and 6.5% and above is diabetes. Again, two tests are required to confirm the diagnosis. So both your 5.9% and your 6.4% indicate "prediabetes".
    Your 188 is high for any time... but at 2 hours after you ate, it was NOT your "peak"... try testing at 1 hour after - it will likely be higher.
    Several years ago, the DCCT (Diabetes Control and Complications Trial) established the fact that the risk and severity of diabetic "complications" increases rapidly (and exponentially) as HbA1c level rises... and the top target level was established as 6.5%, though the ADA recommends 7.0%... but that higher recommendation is based on the difficulty of achieving the lower level. In any event... your 6.4 and 5.9 are excellent from that perspective. BUT... there have also been several studies that found that even among D's that maintained HbA1c levels below the 6.5% mark, if they experienced significant BG spikes after meals (above 140, like your 188), they were more subject to cardiovascular complications (though they still significantly reduced their rates of other complications). For this reason, the IDF and AACE recommend limiting post-meal spikes to no more than 140 mg/dl.
    Just for perspective on the HbA1c test... haemoglobin binds with sugar in the bloodstream, and is always doing so. But the red blood cells themselves live for about 90 days and are replaced... so every day, about 1.1% of them are being replaced (the oldest 1.1%). So it takes 90 days (about) to completely replace all your haemoglobin. So unlike the BG readings you take, which are a "snapshot" of your BG at that point in time, the HbA1c is more of a video of the last 3 months. You may hear/read about it referred to as an "average" of your BG level for the past 3 months.. but it is NOT truly an average... though it's a good indication of how well or poorly controlled your BG has been for the preceding 3 months.
    On the BG readings you take... while it is a measure of the concentration of glucose in the drop of blood you test, that does NOT mean that ALL your blood is at that level... though it's all likely within 10% of that value. Your blood is not homogenized, so the concentration of anything in it will vary from sample to sample, even when taken within minutes of each other. So don't waste time comparing meter readings between fingers and meters.
    Do NOT let any of the preceding discourage you... getting your BG levels under control is achievable, but takes some time; diet and exercise are the keys. BG comes primarily from the carbohydrates we eat... so limiting them is the first line of defense. Everyone has to learn their own system and how it responds, so there's no "one size fits all" plan that anyone can give you. By using your meter, you can learn what works for you... and what doesn't.
    One of our members, Alan Shanley, has a great website with lots of guidance on managing BG... here's the "getting started" page of his site:
    From there, you'll find links to guidance on what to eat, and how to use blood testing to improve your BG levels... and much more.
    On the exercise component of BG control... the reason for exercising by T2's (and prediabetes is a T2 precursor) is that it improves cellular sensitivity to insulin. Insulin insensitivity, or insulin resistance, is the underlying biochemical cause of T2. By exercising regularly, you can improve your body's response to insulin, and thereby lower your BG. But that process takes a little while to start having an impact, and may initially trigger your body to raise your BG. But if you get started and stay with it, it will help immensely. And you don't have to become a gym rat (though you're welcome to if you'd like); simply taking a walk each evening (or morning, or whenever) will get the ball rolling, and as you get accustomed to it, you can increase the time and pace as you see fit.
    I've used the term "prediabetes", rather than just prediabetes. Because it's an absurd concept... much like being "a little bit pregnant". T2 is a progressive disease, and begins with a condition known as "metabolic syndrome", then becomes "prediabetes", and finally "diabetes". Yet there are several steps that can be taken to forestall the "full onset" of the disease... and those steps are the same steps that full-on T2 requires for BG management. So start NOW... as if you were already dx'd (diagnosed). The longer you can keep your BG in line, the better off you'll be, and the longer you may forestall the full diagnosis.
    Good luck, stay healthy, and come back with any and all questions!

  3. threebearcubs1224

    Thank you so much

  4. -> Continue reading
read more close

Related Articles

Popular Articles

More in blood sugar