RE: [ozmidwifery] Glucose Challenge Testing
Hi Abby, There are 2 tests for gestational diabetes: 1. Glucose Challenge Test (GCT) - 75g glucose drink then a blood test 1 hour later, nothing but water in that hour. 2. Glucose Tolerance Test (GTT) - 6 hour fast, then fasting blood glucose, then 75g glucose drink, then a blood test 1 hour and 2 hours later, nothing but water in those 2 hours. Some laboratories use a 50g glucose load for the GCT. The GTT is considered more accurate but when compliance is an issue the WHO recommends the GCT as it can be undertaken on a more opportunistic basis. Hope this clarifies things for you. Leanne. From: "Abby and Toby" <[EMAIL PROTECTED]> Reply-To: [EMAIL PROTECTED] To: <[EMAIL PROTECTED]> Subject: [ozmidwifery] Glucose Challenge Testing Date: Tue, 14 Dec 2004 22:21:48 +1100 Hi, Couple of questions about this- 1) Is this application normal or necessary, the fasting for so long I mean - "My midwife wants me to have a glucose challenge test that involves 12 hours fasting then a blood test, drinking a sugary drink, 1hr later another blood test, drinking another drink and then another hour later another blood test." I have never heard of someone having to fast for that long beforehand?? Seems like a strange thing to ask a pregnant woman to do. Any insight would be great. 2) Does anyone have any info, links, research etc about the accuracy, relevance/importance, evidence etc for the glucose test? Thanks in advance. Love Abby (P.S. Still working on the `evidence` about controlled crying, nutrition etc) Leanne Wynne Midwife in charge of "Women's Business" Mildura Aboriginal Health Service Mob 0418 371862 -- This mailing list is sponsored by ACE Graphics. Visit <http://www.acegraphics.com.au> to subscribe or unsubscribe.
Re: [ozmidwifery] Glucose Challenge Testing
Apologies to sally etc. I read "glucose tolerance test" and not "glucose challenge test". Your (at least mine) eye sees what it expects to see. It is my understanding that the "glucose challenge test" is even more debatable. marilyn - Original Message - From: Abby and Toby To: [EMAIL PROTECTED] Sent: Tuesday, December 14, 2004 3:21 AM Subject: [ozmidwifery] Glucose Challenge Testing Hi, Couple of questions about this- 1) Is this application normal or necessary, the fasting for so long I mean - "My midwife wants me to have a glucose challenge test that involves 12 hours fasting then a blood test, drinking a sugary drink, 1hr later another blood test, drinking another drink and then another hour later another blood test." I have never heard of someone having to fast for that long beforehand?? Seems like a strange thing to ask a pregnant woman to do. Any insight would be great. 2) Does anyone have any info, links, research etc about the accuracy, relevance/importance, evidence etc for the glucose test? Thanks in advance. Love Abby (P.S. Still working on the `evidence` about controlled crying, nutrition etc)
Re: [ozmidwifery] Glucose Challenge Testing
Go to www.hencigoer.com Denise Hynd "Let us support one another, not just in philosophy but in action, for the sake of freedom for all women to choose exactly how and by whom, if by anyone, our bodies will be handled." Linda Hes - Original Message - From: Abby and Toby To: [EMAIL PROTECTED] Sent: Tuesday, December 14, 2004 7:21 PM Subject: [ozmidwifery] Glucose Challenge Testing Hi, Couple of questions about this- 1) Is this application normal or necessary, the fasting for so long I mean - "My midwife wants me to have a glucose challenge test that involves 12 hours fasting then a blood test, drinking a sugary drink, 1hr later another blood test, drinking another drink and then another hour later another blood test." I have never heard of someone having to fast for that long beforehand?? Seems like a strange thing to ask a pregnant woman to do. Any insight would be great. 2) Does anyone have any info, links, research etc about the accuracy, relevance/importance, evidence etc for the glucose test? Thanks in advance. Love Abby (P.S. Still working on the `evidence` about controlled crying, nutrition etc)
Re: [ozmidwifery] Glucose Challenge Testing
Hi Abby: Firstly the other links provided should give you a good idea of the evidence around this test. Logistically though, if the mother wants to go ahead and have the test, the fasting should be no more than the normal overnight "fasting" in other words have a good meal around 8pm and schedule the first or fasting blood draw for 8am, then have the drink loaded with glucose and the further blood draws in 1 hr and 2 hrs. There should not be more than one sugary drink and it should be after the fasting blood draw. Whether or not to have this test is clearly debatable and despite its prevalence not evidence based at least not as a sole indicator for gestational diabetes, or risks of macrosomia, neonatal hypoglycemia etc.. Also the effect of the test is debatable that is does it make any difference or improve outcomes? Enkin et al. makes good reading. Some people prefer to do random blood sugars using a glucometer, some in the morning before breakfast and others 2 hrs after a meal, the kind of "monitoring" a type 2 diabetic person might do when stabilising their blood sugars, and only proceed to a GTT if the results indicate. This is also briefly touched on by Enkin et al and not supported well by evidence either. cheers marilyn - Original Message - From: Abby and Toby To: [EMAIL PROTECTED] Sent: Tuesday, December 14, 2004 3:21 AM Subject: [ozmidwifery] Glucose Challenge Testing Hi, Couple of questions about this- 1) Is this application normal or necessary, the fasting for so long I mean - "My midwife wants me to have a glucose challenge test that involves 12 hours fasting then a blood test, drinking a sugary drink, 1hr later another blood test, drinking another drink and then another hour later another blood test." I have never heard of someone having to fast for that long beforehand?? Seems like a strange thing to ask a pregnant woman to do. Any insight would be great. 2) Does anyone have any info, links, research etc about the accuracy, relevance/importance, evidence etc for the glucose test? Thanks in advance. Love Abby (P.S. Still working on the `evidence` about controlled crying, nutrition etc)
Re: [ozmidwifery] Glucose Challenge Testing
PS a glucose challeng is differnet from the glucoes tolerance test Sally - Original Message - From: Abby and Toby To: [EMAIL PROTECTED] Sent: Tuesday, December 14, 2004 10:21 PM Subject: [ozmidwifery] Glucose Challenge Testing Hi, Couple of questions about this- 1) Is this application normal or necessary, the fasting for so long I mean - "My midwife wants me to have a glucose challenge test that involves 12 hours fasting then a blood test, drinking a sugary drink, 1hr later another blood test, drinking another drink and then another hour later another blood test." I have never heard of someone having to fast for that long beforehand?? Seems like a strange thing to ask a pregnant woman to do. Any insight would be great. 2) Does anyone have any info, links, research etc about the accuracy, relevance/importance, evidence etc for the glucose test? Thanks in advance. Love Abby (P.S. Still working on the `evidence` about controlled crying, nutrition etc)
Re: [ozmidwifery] Glucose Challenge Testing
The whole point of the glucose challenge is for it to be a random glucose sample. No fasting before hand, only nothing for the hour after the drink has been taken. Sally - Original Message - From: Abby and Toby To: [EMAIL PROTECTED] Sent: Tuesday, December 14, 2004 10:21 PM Subject: [ozmidwifery] Glucose Challenge Testing Hi, Couple of questions about this- 1) Is this application normal or necessary, the fasting for so long I mean - "My midwife wants me to have a glucose challenge test that involves 12 hours fasting then a blood test, drinking a sugary drink, 1hr later another blood test, drinking another drink and then another hour later another blood test." I have never heard of someone having to fast for that long beforehand?? Seems like a strange thing to ask a pregnant woman to do. Any insight would be great. 2) Does anyone have any info, links, research etc about the accuracy, relevance/importance, evidence etc for the glucose test? Thanks in advance. Love Abby (P.S. Still working on the `evidence` about controlled crying, nutrition etc)
Re: [ozmidwifery] Glucose Challenge Testing
Check out the following link for the relevant chapter from A Guide to Effective Care in Pregnancy and Childbirth http://www.maternitywise.org/pdfs/gecpc3ch11.pdf the entire book can be accessed via http://www.maternitywise.org/guide/ Cheers, David - Original Message - From: Abby and Toby To: [EMAIL PROTECTED] Sent: Tuesday, December 14, 2004 10:21 PM Subject: [ozmidwifery] Glucose Challenge Testing Hi, Couple of questions about this- 1) Is this application normal or necessary, the fasting for so long I mean - "My midwife wants me to have a glucose challenge test that involves 12 hours fasting then a blood test, drinking a sugary drink, 1hr later another blood test, drinking another drink and then another hour later another blood test." I have never heard of someone having to fast for that long beforehand?? Seems like a strange thing to ask a pregnant woman to do. Any insight would be great. 2) Does anyone have any info, links, research etc about the accuracy, relevance/importance, evidence etc for the glucose test? Thanks in advance. Love Abby (P.S. Still working on the `evidence` about controlled crying, nutrition etc)
[ozmidwifery] Glucose Challenge Testing
Hi, Couple of questions about this- 1) Is this application normal or necessary, the fasting for so long I mean - "My midwife wants me to have a glucose challenge test that involves 12 hours fasting then a blood test, drinking a sugary drink, 1hr later another blood test, drinking another drink and then another hour later another blood test." I have never heard of someone having to fast for that long beforehand?? Seems like a strange thing to ask a pregnant woman to do. Any insight would be great. 2) Does anyone have any info, links, research etc about the accuracy, relevance/importance, evidence etc for the glucose test? Thanks in advance. Love Abby (P.S. Still working on the `evidence` about controlled crying, nutrition etc)
Re: [ozmidwifery] Glucose Challenge Testing
Title: Re: [ozmidwifery] Glucose Challenge Testing Hi Abby You should look at Effective Care in Pregnancy and Childbirth by Enkin et al. The evidence based bible and available in full on line at www.maternitywise.org The 2nd Ed slammed the need for GTT at all. I think they were a little softer in the 3rd ed. Check it out Kind regards Justine
