I had a fasting glucose done back in November at the cardiologist's and it was 98 g/dL. He wouldn't order an A1c despite my request for one.
Any fasting glucose under 100 is non diabetic & it doesn't take any medical degree to know that. Even if a fasting glucose is over 100, a competent doctor would not consider a patient diabetic until doing
several fasting glucose tests that are over 100.
I have friends--a married couple who are 83 & 87 yrs old. Both are not diabetic. The wife's doctor has occasionally tested her fasting glucose at 108, but it's usually 80-95. The husband has sometimes had a fasting glucose of 125. One doctor started him on Metformin. Two other doctors said, "At your age, there is NO reason to lower your glucose because the risk of lows is much more dangerous than trying to get your fasting glucose under 100 like a young person's."
My mom was what her doctor called "Mildly Diabetic." She would sometimes test at 175-220. Her doctor told me "Trying to get her glucose perfect would be very risky - much more than a slightly-elevated glucose level that is to be expected in someone her age."
Many things can elevate glucose levels - even minor issues like stress or a cold.
Older people already have balance issues & low blood sugar would greatly increase the risk of falls, which can be catastrophic.
I've had balance issues since age 10. When my glucose is under 150, I sit in a chair until I treat it by eating carbohydrate. Some doctors I've explained that to don't seem to acknowledge it or believe me, so I don't even bother to mention it any more.
Several years ago, when I was hospitalized for 8 days with Sepsis (caused by a dentist's incompetent root canal), I was sent home with 5 pages of text that said my blood pressure was
"Significantly High" & I should
"Talk to my doctor about starting on blood pressure medication."
That puzzled me because whenever my blood pressure is taken, the person who takes it always says,
"Hmmmm, it's better than mine; 118/70; like a teenager's." During that hospital stay, my BP was taken every 2 hours & it was always normal.
What happened was, they took my BP while I was in the ER for Sepsis & they based my need for BP medication on that one reading - that was obviously high due to my temporary illness. That's something they should have known, but..........ya know.......
"Let's start him on drugs."