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15 May

Blood sugar levels
In January 2020 my Blood tests of blood suagr from laboratory resulted: Fasting level=82 mg/dL, two hours of breakfast=78 and HBA1C=5.5% In June 2020 my blood tests of blood suagar from another laboratory: Random blood sugar level= 78, and HBA1C=5.0%. Today 15 May 2021 I checked my blood sugar after almost 2 hours of breakfast with a glucometer at my home by finger prick blood from my finger and it came out to be 111mg/dL. I am 32 male with BMI 22-23.I am non diabetic. I have some doudbts in my mind.....a) I have got high reading 111 (although less than 140 but higher than my previous reading 78) that was 78 mg/dL before.... Is these readings show i am inclined to diabetes or blood sugar of normal people vary within normal range and there is nothing like inclination? b) Is blood sugar of everyone varies within normal range when we eat like it remains below 140 or it should be a fixed reading after every time we eat....Like after every eating for a non diabetic person should be close to one reading like 78 etc? Normal ranges used here are: Fasting less than 100, Random less than 140 and HBA1C less than 5.7. Please educate me and clarify my doubdts...Thanks a lot for your kind service here.
Diabetes expert
Diabetes expert

18 May


According to SA guidelines, a fasting laboratory glucose (done in the morning after fasting for 8 hours) is considered normal if it is less than 110, pre-diabetes if it is between 110 and 126, and diabetes if it is 126 or more. Normally we would want two abnormal results, or one abnormal result with associated symptoms like tiredness, weight loss, drinking lots of water and passing too much urine. The other way to test glucose is to do a glucose tolerance test where you go to the lab fasting and they give one 75grams of glucose to drink in water and then test your glucose levels after 2 hours. The cut off for diabetes is a level of 200 or higher at 2 hours and normal is less than 140. Between these two levels is considered pre- diabetes. Some patients will be normal on one test and abnormal on another, so sometimes we may do  both. We don’t normally use the fingerprick test, as the levels are a bit more variable. An HbA1c of 6.5% or higher is compatible with diabetes, as long as there are symptoms, or otherwise you will need a repeat level to confirm. Currently you have normal glucose readings. Levels always vary within the normal range, and are not fixed after a meal, as it will depend on what you have eaten, exercise, stress levels etc

The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical examination, diagnosis and formal advice. Health24 and the expert accept no responsibility or liability for any damage or personal harm you may suffer resulting from making use of this content.
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