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Do I need to fast for the GD test?

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#1 purple_daisy

Posted 16 January 2013 - 02:44 PM

I saw the OB who was on duty for my 20 week appointment a few days ago and she gave me the slip to go and have that GD test at 26 weeks where you drink that stuff then wait an hour.

We were talking about other things when she was printing it out for me, so nothing was said but am I supposed to fast before the test? I honestly can't remember what I did last time, but I think I went first thing in the morning which is why I'm wondering if I was fasting or not.


#2 MrsLexiK

Posted 16 January 2013 - 03:05 PM

If it is the hour test then no. If it I the two hour test then yes.

#3 purple_daisy

Posted 16 January 2013 - 03:08 PM


#4 BabyHopeful

Posted 16 January 2013 - 03:08 PM

There should be a box checked on the forn if you need to fast.

#5 BJBubbles

Posted 16 January 2013 - 03:48 PM

Just check is written on the pathology form ...

If it's for the Glucose Challenge test - that is the 1 hour test and you don't need to fast. In fact they usually tell you to eat as normal. You can do this test any time of day.

If it's for the Glucose Tolerance Test - you need to fast overnight and head to pathology lab first thing in the morning. The test will take closer to 2.5 hours...

#6 quietlyhopeful

Posted 16 January 2013 - 04:10 PM

I'm having my GCT tomorrow. The pathology lady on the phone told me it'd take 2 hrs and that I needed to fast! I've been dreading it because my body doesn't cope too well in the mornings without food. Maybe she misheard me though and thought I was doing the GTT. Oh well, I'll fast anyway just in case (too late in the day to call and check now). I thought she sounded like she didn't know what she was talking about lol.

#7 boysescakes

Posted 16 January 2013 - 04:38 PM

I am actually a pathology collector.  The GTT is for 2 hrs and you need to fast from the night before and test must be done in the morning.  The GTC  takes about an hour.  You need to eat your breakfast or if you choose lunch, and go to the collection centre 2 hrs after the meal.  You mustn't be fasting for this test.  But they shouldn't do the test either until 2 hrs have pasted from your last meal.  Hope this helps!!!

#8 quietlyhopeful

Posted 16 January 2013 - 07:11 PM

Thank you for that original.gif my appt is at 830 so I think I'll show up, but I have a feeling they'll send me home to have some breakfast. I wish I had have read this earlier so I could call and change my appt time. Very annoying! Lucky it's only 1km down the road!

#9 quietlyhopeful

Posted 17 January 2013 - 08:01 AM

Update: what PP said is correct. Fast for GTT but not GCT. Luckily I could still do my GCT even though I'd fasted (she just indicated this on tgw form). I loved the taste of the glucose drink!

In other news, the lady that booked me in was useless. She not only gave me the wrong info and booked me in for the wrong test (despite me triple checking), she wrote down the appt for the wrong day (double checked that too) and the pathologist said they don't normally even take appointments!! haha! At least I'm here now and only have to wait an hour original.gif

#10 Koobie83

Posted 17 January 2013 - 09:42 AM

I'm doing the 2 hour GTT on Monday. I was told to have my dinner on Sunday night, and not to eat breakfast on Monday morning and will start my test early at about 7:30am. So technically, yes, that's fasting.

I'm not sure about the 1 hour test, but as far as I am aware yes you need to fast for the 2 hour one.

#11 Natttmumm

Posted 17 January 2013 - 02:55 PM

I did the 1 hour test and they told me to have a normal breakfast before hand. Nothing was mentioned about fasting or how long it should be since eating.

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