Hello and Welcome to ‘Ask A Doctor’ service.
I have reviewed your query and here is my advice.
As you have mentioned FBG is 122 mg, (which is not normal, it falls in the prediabetic range that is 108 mg to 125 mg/100 mL), and
HbA1c is 5.7 (which is normal), there is no overt
diabetes. But if after food blood
glucose does go above the
kidney threshold (160 to 180 mg), some glucose is filtered in urine, even though there may be no overt diabetes.
Secondly, sometimes there is
renal glycosuria as kidney threshold may have come down.
My suggestion, please get your after food blood glucose and urinary glucose tested, which should help to clarify the doubt. Plus looking at your fasting level, you need to take necessary precautions so as to avoid becoming diabetic.
The precautions include regular exercise, weight control and avoiding sweets, junk foods, deep fried foods, aerated sweetened drinks (colas), pastries, and bakery items.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. Prabhakar Laxman Jathar