[Cross-posted in Breastfeeding Challenges]
My DD has been diagnosed with anemia
and we're having to have a whole raft of blood tests done on her. The doctor said that she needs to fast for 12 hours before the tests.They include checking the blood glucose and blood calcium levels, both of which can apparently be affected by whether or not the person being tested has been fasting.
When I made the appointment for DD's tests I asked the lab technicians if I could bf her during the fast time. They said they didn't know and that I should do what I want
. I would vastly prefer to just keep bfing as usual, and I'm sure DD would too - the longest she's ever gone without milk has been five hours or so. But it would be a big hassle to have false positives in the tests, which I guess could happen if she has any food in her stomach (at least according to what I read on a quick Internet trawl just now).
I just wondered if any of you might know something more about this issue - I know next to nothing about blood glucose and blood calcium. I would imagine it all depends on how long it takes to digest breastmilk (and 12 hours seems like a very long time for that - maybe a good compromise would be to feed her two or three hours before the test and then not again till afterwards?).
Any quick insights much appreciated - I don't have much time to make up my mind as the tests are scheduled for tomorrow morning, which is already less than 12 hours away! DD is asleep now and has a bellyful of milk, but I'm sure that won't last her the night...