PREGNANCY-BIRTH Messages for July, 2001: Re: 1 Hour GTT -- WIll water and +30 minutes affect results???

Re: 1 Hour GTT -- WIll water and +30 minutes affect results???

From: M. Kelly Shanahan, MD, (anonymous@obgyn.net)
Sat, 21 Jul 2001 00:05:02 -0500 (CDT)

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In reply to: Meredith: "1 Hour GTT -- WIll water and +30 minutes affect results???"

At Fri, 20 Jul 2001, Meredith wrote: >
>I had my first OB appt today at 11 wks 1 day, and the OB decided to
>schedule me for an immediate 1 hr GTT, among other tests, because I am
>overweight and have chronic candida infections. (There is no history of
>diabetes or gestational diabetes for me or my family.)
>
>Here was the problem: after 1 hour I was taken back for the blood draw,
>but apparently I was dehydrated or something, because although the tech
>punched the veins three times, he could not get enough blood for the
>tube. He had me drink 32 oz. of water and sit for 15 minutes, then
>proceeded to redraw and did manage to get enough for the GTT. By this
>time 1 hr 30 minutes had passed.
>
>Will the test results be invalidated by the water or the extra 15
>minutes?

idealy, the blood is drawn exaclty one hour after you finish the drink

Should this be enough of a concern to note to doctor, based on >my condition/history?

your doc should be made aware teh blood was drawn at 1.5 hours, as this can affect interpretation of the results >
>--
>Thank you very much for your time and efforts -- they are appreciated!!
>Meredith
>

-- M. Kelly Shanahan, MD, FACOG South Lake Tahoe, CA

author, Your Over-35 Week-by-Week Pregnancy Guide available in all major bookstores and on-line at amazon.com

****Responses are for educational purposes only and do not construe a doctor-patient relationship. This does not replace a face-to-face consultation with your own doctor.****

***Private e-mails will NOT be answered***

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In reply to: Meredith: "1 Hour GTT -- WIll water and +30 minutes affect results???"

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