Fasting Blood Glucose 194, Random BG 204 mg/dL

by Fre
(Ethiopia)




QUESTION: I am 31 and have type 2 diabetes. I have taken one Daonil tablet each morning for six months, but my fasting glucose is 194 mg/dL and my random after-meal glucose is 204 mg/dL. Why am I not seeing improvement?





Quick Answer


Fasting glucose of 194 mg/dL and an after-meal or random reading of 204 mg/dL are above the usual targets for most adults with diabetes. This suggests that the current treatment is not providing adequate control, but you should not increase Daonil yourself. Arrange a prompt medical review for an HbA1c, kidney and liver tests, a medication and meal review, and confirmation that type 2 diabetes is the correct diagnosis.




Answer by Dr. Albana Greca, MD, MMedSc



Hello Fre,



Daonil contains glibenclamide, also called glyburide. It is a sulfonylurea that stimulates the pancreas to release more insulin. Some people respond well, while others need a different dose or additional treatment. Its effect may also become insufficient as type 2 diabetes progresses.



How High Are These Readings?



For many nonpregnant adults with diabetes, common individualized goals are 80–130 mg/dL before meals and below 180 mg/dL one to two hours after a meal begins. Your fasting result of 194 mg/dL is clearly above this range, and 204 mg/dL after eating is also elevated.



One or two home readings do not show the full pattern. Record fasting, before-meal, and selected one-to-two-hour after-meal readings in a blood sugar log and bring it to your clinician.



Why Might Daonil Not Be Enough?




  • The current dose or medicine may no longer be sufficient.

  • Meals may contain more carbohydrate than expected.

  • Missed doses, incorrect timing, or difficulty obtaining medicine may affect control.

  • Infection, poor sleep, stress, pain, dehydration, or corticosteroids may raise glucose.

  • Kidney, liver, or pancreatic problems may change treatment needs.



At age 31, especially if you are lean, losing weight, producing ketones, or worsening quickly, your clinician should also consider whether this could be autoimmune diabetes or another diabetes type rather than assuming type 2 diabetes. Our guide to diabetes blood tests explains HbA1c and confirmatory testing.



What Should Your Doctor Review?



Ask for an HbA1c, fasting laboratory glucose, kidney function, liver tests, blood pressure, weight, and cholesterol review. Your clinician should confirm the exact Daonil strength, how you take it, whether you experience low glucose, and whether another medicine or insulin is appropriate.



Do not double the tablet or add another diabetes medicine yourself. Glibenclamide can cause prolonged hypoglycemia, particularly when meals are delayed, alcohol is used, or kidney function is reduced. Learn more about sulfonylurea side effects and low-glucose risk.



Food and Activity Still Matter



Continue balanced meals with nonstarchy vegetables, protein, and measured portions of rice, bread, injera, potatoes, or other carbohydrate foods. Avoid sugary drinks and large portions of refined starch. Regular walking can help when you feel well, but lifestyle changes should support—not replace—needed medication adjustment.



Our guide to how foods affect blood sugar can help you compare carbohydrate portions.



What About Fasting 90 and After-Meal 204?



A fasting reading of 90 mg/dL is normal, but an after-meal result of 204 mg/dL may still be high. The meaning depends on when it was measured and whether it followed an ordinary meal or a formal oral glucose tolerance test.



If 204 mg/dL was measured one to two hours after an ordinary meal, it is above the common monitoring target and should be discussed with a clinician. If it was a laboratory two-hour result during a 75-gram oral glucose tolerance test, it is within the diabetes diagnostic range. One home after-meal reading alone does not diagnose diabetes; HbA1c and laboratory testing are appropriate.




Important Safety Note


Seek same-day medical advice if glucose repeatedly reaches 300 mg/dL or higher, especially with excessive thirst, frequent urination, weakness, dehydration, or unexplained weight loss. Go to emergency care for vomiting, abdominal pain, rapid or difficult breathing, fruity-smelling breath, confusion, fainting, high ketones, glucose above 400 mg/dL, or a meter displaying “HI.” Treat glucose below 70 mg/dL promptly.





Doctor’s Note


Six months of fasting glucose near 194 mg/dL should not be managed by continuing the same plan without review. Contact your diabetes clinician soon and bring your medicine package and glucose log. Treatment should be intensified or changed when individualized goals are not met, while also minimizing the hypoglycemia risk from glibenclamide.





Educational safety note: This answer is for general diabetes education only. It does not replace personal medical advice, diagnosis, or treatment. Do not start, stop, or change medicines, supplements, diet, or exercise plans without speaking with your healthcare provider.




Related Questions




Related Resources




Last reviewed: July 2026.




Comments for Fasting Blood Glucose 194, Random BG 204 mg/dL

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Mar 20, 2018
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starstarstarstarstar 		Fasting sugar 90, after meal 204. Is symptom of diabetes?
by: Lazmikant

QUESTION: Hello,

My fasting sugar level is 90 and aftermeal is 204.
Is this the symptom of diabetes?


ANSWER: Hello Lazmikant,

Thank you for sharing your concern with us.

First, let me admit that the diagnosis of diabetes is not that simple.

Next, if I was your caring doctor would ask if you are having any other sign of diabetes like:
- being thirsty all the time?
- frequent urination?
- unusual hunger?
- any other sign?

You have measure blood sugar fasting. That is perferctly normal.

After meal it resulted 204. Here I need to know at what time did you measure your blood sugar.
That is very important because we should wait for at least 2 hours before measuring blood sugar after meal.

It is normal for blood glucose to raise immediately after eating for the first couple of hours. After that if not diabetic, they will get normalized on their own.
If you are a diabetic, then, it might require a bit more time or you might start changing your diet menu and lifestyle regimen to correct the glucose levels.

Another important point is to measure HBA1C level, in order to understand the mean of your blood glucose the last 3 months. So , will have the full picture and say the last word.

Hope this answers your query. Let me know if you have any other concern.

Dr.Albana
May 20, 2017
Rating
starstarstarstarstar 		Lowering fasting sugar level 194 & after meal 204?
by: Dr.Albana

Hello Fre,

I read your message and understood your medical problem.

I see you are a 31 years old type 2 diabetes patient on Daonil treatment 1 pill/day for 6 months now. Your current fasting BGL is 194 and the random BGL after a meal is 204.

Type 2 diabetes is also known as maturity onset diabetes or non-insulin-dependent diabetes. It is caused because of the insulin resistance in the body. Usually, this condition develops in people older than 40 years old but it may present in younger patients as well like in your case.

The good news about type 2 diabetes is that you can make a more independent life as it is treated initially with pills and you are not dependent on insulin injections and pumps from the start. If you had type 1 diabetes, you would be tied forever to insulin injections or pumps.

Type 2 diabetes is treated with pills in conjunction with diet control and regular exercise.

Daonil (glibenclamide) is a drug used to low the blood glucose levels in type 2 diabetes by increasing the amount of insulin produced by your pancreas.

This drug can be used alone as monotherapy or in combination with other anti-diabetic drugs.

As the disease progresses, you may need insulin injections in the future that is why it is very important that you must keep your disease under control.

Keep in mind that in type 2 diabetes the target BGL are:
-fasting BGL = 90-126mg/dl
-postprandial BGL under 155mg/dl

Your blood glucose levels are obviously higher than the target. This means that the treatment needs more attention to work.

Please make lifestyle changes to improve the control of blood glucose levels. Do regular exercise, do some easy sports you may like, or just take a long walk every day will be helpful too.

If you are overweight try hard to lose some weight as it is very important to improve the outcome of the treatment and prevents complications.

Try to maintain new habits of eating. Reduce carbs you are taking, eat healthy based on vegetable dishes, fish, and fruits. Avoid saturated fats and sugars.

If the lifestyle changes along with the Daonil pills do not work please contact the doctor for a close look at the problem. You may need to substitute Daonil with another drug or just changing the dosage.


Hope this is helpful for you.

Thank you.

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