Common "Fasting Blood Sugar Level" queries answered by top doctors | iCliniq

Fasting Blood Sugar Level

The test used to check the blood sugar level after eight hours of fasting is called fasting blood sugar level. A fasting blood level between 70 to 100 mg/dL is considered normal, and levels between 100 to 125 mg/dL is considered as prediabetes. If two consecutive tests show levels higher than 125 mg/dL, then you have diabetes.

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Fasting sugar level is higher than postprandial level. Why?

Query: Hello doctor, My mother's fasting sugar is higher than the post prandial sugar (130 and 115 respectively). She had normal diet only. And also, 2 hours after taking 75 grams of glucose, without any work, the sugar level is 260. Why is this happening?   Read Full »


Dr. Kaveri Dandapani

Answer: Hi, Welcome to icliniq.com. Regarding blood sugar levels, if a patient is diabetic and if she is on oral medication for diabetes, the sugar levels can be as have you stated (fasting blood sugar level more than the post prandial blood sugar). This happens because most of the anti-diabetic med...  Read Full »

Kindly suggest if I could stop Glycomet if my sugar levels drop.

Query: Hello doctor, My age is 36 years and weight is 86 kg. Recently, I observed that my fasting blood sugar was 125. All my LDL and HDL cholesterol levels are in control. So, the doctor suggested me take Glycomet SR 500 after dinner and asked me to follow for three months. So I have one doubt like in ca...  Read Full »


Dr. Vandana Andrews

Answer: Hi, Welcome to icliniq.com. Yes, so if your sugar levels are less than 100 mg/dl without taking medication, your doctor probably might wean you off. But the condition is that it should stay in the normal range without medication. Right now, your sugar is in the normal range due to the medication. ...  Read Full »

Despite medications, my sugar levels are high. Why?

Query: Hi doctor, I am a known diabetic for the past 15 years. 20 days ago, my HbA1c was 9.83. I am 54 years old and my weight is 87 kg. My medications are Metformin 500 mg, Hcl 1500 mg, Istavel 100 mg and Glaritus Insulin 30 units. Even then the sugar levels are 246, 265 and 277 after every three hours t...  Read Full »


Dr. Sadaf Mustafa

Answer: Hello, Welcome to icliniq.com. I have a few questions for you as I would like to know more about your diabetes history. Can you please share what are your morning what are your morning blood sugars in fasting? When do you give yourself Insulin and how often? Have you ever tried a higher dose of Met...  Read Full »

Was gestational diabetes test conducted correctly for me?

Query: Hi doctor, I am 9 weeks 3 days pregnant. My doctor has diagnosed me with gestational diabetes. At my 1 hour test, my levels were at 170, which was high, but they told me it was low. I was scheduled for 3 hours test and was told to eat sugar treats and sugar drinks three days before my test and then ...  Read Full »


Dr. Balakrishnan R

Answer: Hi, Welcome to icliniq.com. Let me make a few corrections in the methods done. I have not heard of the methods done. Gestational diabetes is caused by the hormones of the pregnancy, which appears in pregnancy only after 26 to 28 weeks, the time when pregnancy hormones are at the highest level. So...  Read Full »

Does my fasting blood sugar and Hba1c look normal?

Query: Hi doctor, I am a 25-year-old female. My husband who is 30 years old was diagnosed with diabetics. I was shocked about it and I went for a fasting blood sugar test where mine was 111. I was worried since it is considered as prediabetics. So doctor here told to take a HbA1c test, it was 4.8. So the ...  Read Full »


Dr. Chandwadkar Ashish

Answer: Hi, Welcome to icliniq.com. Well FBS (fasting blood sugar) can alter due to many reasons and it shows only the present sugar in your body during the time you gave your blood. But HbA1c (glycosylated hemoglobin) can show you the effect of sugar and longterm effects of it on hemoglobin molecule whic...  Read Full »

My blood sugar levels are high. Please help.

Query: Hello doctor,I am a 50-year-old male taking the tablet Diapride M1 twice daily after breakfast and dinner. My fasting blood glucose levels are 150 mg/dL, and post prandial blood glucose levels are 200 to 210 mg/dL. Kindly help me set up a regime to achieve proper control. Thank you.  Read Full »


Dr. Nagaraj

Answer: Hello, Before I suggest something, I would like to know how long you have been taking these medications and your sugar level before starting them. How are your diet and lifestyle? Do you have any other medical conditions? If yes, are you taking any medicines for the same? I would also like to know ...  Read Full »

I had been dealing with an issue related to ESR and HbA1c levels. Why my recent HbA1c might is elevated while other glucose-related tests appear normal?

Query: Hello doctor, Five years before, I had been dealing with an issue related to ESR and HbA1c levels. My recent diabetes screening showed the following results: Fasting blood sugar (FBS): 5.2 mmol/L (Normal) Glucose 2H (OGTT): 5.9 mmol/L (Normal) HbA1c: 5.7% (38.8 mmol/mol) (Prediabetes range) ...  Read Full »


Dr. Vandana Andrews

Answer: Hello, Welcome to icliniq.com. I understand your concern. Based on the information you provided, some possible reasons why HbA1c (hemoglobin A1c) is high while FBS (fasting blood sugar) and OGTT (oral glucose tolerance test) are normal could be due to a variety of factors such as diet, exercise, ...  Read Full »

My low testosterone is affecting my marriage. Please help.

Query: Hi doctor, I am 34 years old. My weight is 185 lbs. I am married for four years. I am unable to make a relationship with my wife. The erection problem is there for the past two years. I checked my testosterone level, which is 183. Why is it low? Please advise me the ways to increase the testosterone...  Read Full »


Dr. Divakara. P

Answer: Hi, Welcome to icliniq.com. Your testosterone is quite low. We first need to find the cause of that. In that regard, I recommend the following tests to you. FBS (fasting blood sugar), PPBS (postprandial blood sugar), SHBG (sex hormone-binding globulin), TSH (thyroid-stimulating hormone), serum prol...  Read Full »

My 68-year-old diabetic mother experiences discomfort due to elevated blood sugar levels. Please help.

Query: Hello doctor, My 68-year-old mother is a diabetic patient with a history of HbA1c level checked four months ago, which was 7.1. Her current fasting sugar level is 102. She experiences discomfort due to elevated sugar levels. She had angioplasty performed three years ago, with ongoing heart medicat...  Read Full »


Dr. Raveendran S R

Answer: Hello, Welcome to icliniq.com. I read your query and understand your concern. I have reviewed the report (attachment removed to protect the patient's identity). It appears that there is an increase in both sugar and cholesterol levels. If your mother is not currently on medication, I would s...  Read Full »

Is it normal to have burning sensation in feet with high sugar levels?

Query: Hi doctor, My mother is having leg cramps from the past two to three months. And now from the past two weeks, she is complaining about feet sole pain and burning sensation which is almost intolerable. We got a few blood tests done as advised by our family doctor as per which two tests are worryin...  Read Full »


Dr. Prathish Kumar

Answer: Hi, Welcome to icliniq.com. I went through the history and mentioned investigations (attachment removed to protect patient identity). Fasting blood sugar 129 mg/dL is something to worry about because it is in the diabetic range. I will be happy to help you better if you can upload all the inve...  Read Full »

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