Blood tests and fasting

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Wheelchair Bound
Regular Member

Date Joined Dec 2007
Total Posts : 84
   Posted 6/13/2010 8:55 AM (GMT -7)   
My neighbor was asking me some questions about blood tests and I really wasn't sure what to tell him maybe you can help.  He thinks he might be borderline.  His doctor has checked his blood sugar several times in the past three years.  Ussually his leval is between 100 and 115 after a eight to ten hour fasting time over night.  However one time it was 127.  This was the day after Thanksgiving last year.  He had eaten alot of food and had a drank several cans of soda, not diet. What he wants to know is does the food you eat the day before especailly at supper time affect your levals in the AM.  He usually goes to the doctor around 8:30 so it's been at least ten hours since eating.  Would fasting a little longer after a larger meal made any difference or been the right thing to do.  He has an appointment next week and is a little concerned.  I tried to answer some of his questions but confused him.  Maybe you can explain some this so he will understand it better.  I can than have him read your answers so he might have a better Idea whats going on.
Legless Linda
Wheelchair Bound/Legless Linda/Linda
Double leg amputee from diabetes and circulation problems. Legally blind, low vision problems.

Veteran Member

Date Joined May 2006
Total Posts : 547
   Posted 6/13/2010 10:02 AM (GMT -7)   
Q: "does the food you eat the day before especailly at supper time affect your levals in the AM"?

A: Loads of sugary pop, starchy veg, casseroles, breads, pies, etc. and lots of food in general would DEFINITELY take some time to metabolize. 127 is a little bit on the high side for fasting but totally explainable by the meal (IMHO). Probably not the best thing to eat the eve before a test :-)

For me personally, even a supper high in protein & fat with moderate carbs would see it affect my BGLs for the next 24 hours, easy. Does your neighbour have a BGL meter? Maybe you could test him on yours, Linda? Have him eat something sensible, fast for 12 hours, a do a fasting test on your meter. At the very least, it could give him an idea of what he might be discussing with his doc next week, not to mention a piece of data he could take to his doc.

(Nice to hear from you, Linda! Hope all is well with you? :-)

- Phishbowl (Type 1 since Jan'05 - Levemir, NovoRapid)
"What's Not Measured Is Not Managed"

"It is impossible for a man to learn what he thinks he already knows"-Epictetus

Veteran Member

Date Joined Apr 2004
Total Posts : 6056
   Posted 6/21/2010 5:54 PM (GMT -7)   
Hi Linda!
As Kris said, nice to hear from you again! Far as I can tell your neighbor is a "normal" and Kris' idea about a home fast is a great idea. I'll bet if he has a regular dinner of meat, starch, veggies and perhaps a small cup of ice cream, in the morning he will be about 100 to 110. That wouldn't be much to worry about but he could cut out his starches and see if it helps the numbers go down. Having a drop in numbers when you eliminate carbs is a definite indicator that he may be having trouble handling his glucose load. AND he can do that on his own without his doctor's direction, too. Tell him good luck with this.
~ Jeannie
Moderator for Fibromyalgia and Diabetes

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