Re: Glucose Tolerance Test Post- Op

[Guest guest]

,

The usual GTT test (presumably for GDM) is often 75 - 100 grams of a

glucose infused liquid, drank all at once and then BS readings are

taken at 1,2 and 3 hour intervals. From my experience working with

pregnant GBP patients and also research I've read, the GTT test would

not be practical or even accurate for post surgery patients due to the

high risk of dumping cause by the large sugar bolus. We are in the

process of developing a policy and procedure for a fasting BS level to

be checked early on in pregnancy (usually with the OB panel) and then

repeated at 24-27 weeks gestation. It is the only accurate

measurement of glucose intolerance that I know of and is recommended

in articles I've read about pregnancy and GBP.

Another thing to consider is some GBP surgery patients may have DM and

because the surgery/weight loss lowers the BS levels, pregnancy may

increase BS levels and they are in effect - pregnant with DM - not

GDM. I hope this info is helpful and if anyone has any different or

additional information... please share!

Kathleen Wall

>

> Would any members kindly share documentation and recommendations re:

> this ? One of our CDE's is trying to talk to a physician.

>

> Thanks !

>

> Strathdee, RD,LD, LMHC

> Genesis Medical Center

> Davenport, IA

>

[Guest guest]

Thanks, Kathleen !

Strathdee

>>> kathwall@... 8/29/2006 8:48 PM >>>

,

The usual GTT test (presumably for GDM) is often 75 - 100 grams of a

glucose infused liquid, drank all at once and then BS readings are

taken at 1,2 and 3 hour intervals. From my experience working with

pregnant GBP patients and also research I've read, the GTT test would

not be practical or even accurate for post surgery patients due to the

high risk of dumping cause by the large sugar bolus. We are in the

process of developing a policy and procedure for a fasting BS level to

be checked early on in pregnancy (usually with the OB panel) and then

repeated at 24-27 weeks gestation. It is the only accurate

measurement of glucose intolerance that I know of and is recommended

in articles I've read about pregnancy and GBP.

Another thing to consider is some GBP surgery patients may have DM and

because the surgery/weight loss lowers the BS levels, pregnancy may

increase BS levels and they are in effect - pregnant with DM - not

GDM. I hope this info is helpful and if anyone has any different or

additional information... please share!

Kathleen Wall

>

> Would any members kindly share documentation and recommendations re:

> this ? One of our CDE's is trying to talk to a physician.

>

> Thanks !

>

> Strathdee, RD,LD, LMHC

> Genesis Medical Center

> Davenport, IA

>