Usually people fast ~12h before getting blood drawn for lab tests. Today, due to a variety of unforseen circumstances I went had mine done after an 18h fast. I finished eating around 530pm last night and although the test was supposed to be at 9am, I didn't get the blod drawn until about 1130.
What affects, if any, might this have on my results?
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If anything it will be sightly elevated, your body starts to access its own glucose stores and blood sugar levels rise. Smart body.
I did it for about 20 hours prior to my last blood panel. It was around 3 PM. My fasting glucose was 101, which is slightly elevated.
However, everything else was nearly perfect.
As a T2 diabetic that regualarly tests my BG during an IF, I doubt whether it will make any difference.
There is always a bit of variation in the readings from hour to hour as your liver drips glucose into your bloodstream, but unless you overly exert yourself and cause a huge liver dump before the test I doubt it will make any difference. Your metabolism is quite good a conserving glucose when it needs to.