Jump to content

  • Welcome to Celiac.com!

    You have found your celiac tribe! Join us and ask questions in our forum, share your story, and connect with others.



  • Celiac.com Sponsor (A1):

    Celiac.com Sponsor (A1-M):

  • Get Celiac.com Updates:
    Support Our Content
    eNewsletter
    Donate

What To Eat Before Blood Test

e&j0304

Recommended Posts

e&j0304 Enthusiast
e&j0304
Posted

I was just wondering what I should do with Ella before she's tested so that we get the most accurate results. Should this be done after fasting (first thing in the morning) or after eating gluten during the day?

I kind of want them to test her glucose levels again and I know they want her to fast for that so I suppose they would draw all the blood at the same time.

What do you all think? I'm nervous about getting an accurate reading as it is because she's still young (2 1/2 years) so I want to do this right to get the most accurate result.

Any advice would be helpful! We go tomorrow to the ped to talk about testing....

shannon

Celiac.com Sponsor (A8):
Celiac.com Sponsor (A8):

Celiac.com Sponsor (A8-M):


SueC Explorer
SueC
Posted

Hi Shannon,

I don't think an overnight fast would effect the celiac panel. As long as she is not on a gluten-free diet your results should be accurate.

Sue

Guest nini
Guest nini
Posted

I had my blood test after consuming a meal FULL of gluten... (but then again I didn't know I was going to be tested for Celiac when I went to the GI appt.) so, no fasting...

KaitiUSA Enthusiast
KaitiUSA
Posted

An overnight fast will not affect the results. You have to be off of gluten much longer then that.

Carriefaith Enthusiast
Carriefaith
Posted

If you are getting other tests done (lile glucose levels) than she may be required to fast. Fasting for 12 hours should not affect the results. I was sent to the GI doctor not knowing what would happen and he drew blood for celiac that day. My results were very positive for celiac and I don't believe that I had very much gluten if at all within 12 hours prior to the test.

  • 5 years later...
twinkle-toez Apprentice
twinkle-toez
Posted

How much gluten were people consuming in the days/ weeks/ months prior to being tested though?

Would eating crackers on a regular basis, and bread intermittently be enough to show a positive result?

tarnalberry Community Regular
tarnalberry
Posted

The equivalent of 3-4 slices of bread a day for 3 months to feel fairly confident that you've got low odds of a false negative. There's no exact answer that works for everyone, as it depends on how quickly your intestines are damaged (and how much repair work is going on at the same time).

Celiac.com Sponsor (A8):
Celiac.com Sponsor (A8):

Celiac.com Sponsor (A8-M):


Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Get Celiac.com Updates:
    Support Celiac.com:
    Join eNewsletter
    Donate
  • Celiac.com Sponsor (A17):
    Celiac.com Sponsor (A17):



    Celiac.com Sponsors (A17-M):



  • Recent Activity

    1. lizzie42
      - lizzie42 posted a topic in Post Diagnosis, Recovery & Treatment of Celiac Disease
      0

      Son's legs shaking

      My 5yo was diagnosed with celiac last year by being tested after his sister was diagnosed. We are very strict on the gluten-free diet, but unsure what his reactions are as he was diagnosed without many symptoms other than low ferritin. He had a school party where his teacher made gluten-free gingerbread men. I almost said no because she made it in her...
    2. trents
      - trents replied to Paulaannefthimiou's topic in Gluten-Free Foods, Products, Shopping & Medications
      1

      Bob red mill gluten free oats

      Not necessarily. The "Gluten Free" label means not more than 20ppm of gluten in the product which is often not enough for super sensitive celiacs. You would need to be looking for "Certified Gluten Free" (GFCO endorsed) which means no more than 10ppm of gluten. Having said that, "Gluten Free" doesn't mean that there will necessarily be more gluten than "Certified...
    3. trents
      - trents replied to jenniber's topic in Celiac Disease Pre-Diagnosis, Testing & Symptoms
      10

      Disaccharide deficient, confusing biopsy results, no blood test

      I think it is wise to seek a second opinion from a GI doc and to go on a gluten free diet in the meantime. The GI doc may look at all the evidence, including the biopsy report, and conclude you don't need anything else to reach a dx of celiac disease and so, there would be no need for a gluten challenge. But if the GI doc does want to do more testing, you...
    4. Paulaannefthimiou
      - Paulaannefthimiou posted a topic in Gluten-Free Foods, Products, Shopping & Medications
      1

      Bob red mill gluten free oats

      Are Bobresmill gluten free oats ok for sensitive celiacs?
    5. jenniber
      - jenniber replied to jenniber's topic in Celiac Disease Pre-Diagnosis, Testing & Symptoms
      10

      Disaccharide deficient, confusing biopsy results, no blood test

      thank you both for the insights. i agree, im going to back off on dairy and try sucraid. thanks for the tip about protein powder, i will look for whey protein powder/drinks! i don’t understand why my doctor refused to order it either. so i’ve decided i’m not going to her again, and i’m going to get a second opinion with a GI recommended to me b...
  • Celiac.com Sponsor (A19):

  • Member Statistics

    • Total Members
      132,850
    • Most Online (within 30 mins)
      7,748
    Cindy Shreve
    Newest Member
    Cindy Shreve
    Joined
  • Celiac.com Sponsor (A20):
  • Celiac.com Sponsor (A22):

  • Forum Statistics

    • Total Topics
      121.5k
    • Total Posts
      1m
  • Celiac.com Sponsor (A21):

  • Upcoming Events

  • Posts

    • lizzie42
      Son's legs shaking

      By lizzie42 · Posted

      My 5yo was diagnosed with celiac last year by being tested after his sister was diagnosed. We are very strict on the gluten-free diet, but unsure what his reactions are as he was diagnosed without many symptoms other than low ferritin.  He had a school party where his teacher made gluten-free gingerbread men. I almost said no because she made it in her kitchen but I thought it would be ok.  Next day and for a few after his behavior is awful. Hitting, rude, disrespectful. Mainly he kept saying his legs were shaking. Is this a gluten exposure symptom that anyone else gets? Also the bad behavior? 
    • trents
      Bob red mill gluten free oats

      By trents · Posted

      Not necessarily. The "Gluten Free" label means not more than 20ppm of gluten in the product which is often not enough for super sensitive celiacs. You would need to be looking for "Certified Gluten Free" (GFCO endorsed) which means no more than 10ppm of gluten. Having said that, "Gluten Free" doesn't mean that there will necessarily be more gluten than "Certified Gluten" in any given batch run. It just means there could be. 
    • trents
      Disaccharide deficient, confusing biopsy results, no blood test

      By trents · Posted

      I think it is wise to seek a second opinion from a GI doc and to go on a gluten free diet in the meantime. The GI doc may look at all the evidence, including the biopsy report, and conclude you don't need anything else to reach a dx of celiac disease and so, there would be no need for a gluten challenge. But if the GI doc does want to do more testing, you can worry about the gluten challenge at that time. But between now and the time of the appointment, if your symptoms improve on a gluten free diet, that is more evidence. Just keep in mind that if a gluten challenge is called for, the bare minimum challenge length is two weeks of the daily consumption of at least 10g of gluten, which is about the amount found in 4-6 slices of wheat bread. But, I would count on giving it four weeks to be sure.
    • Paulaannefthimiou
      Bob red mill gluten free oats

      By Paulaannefthimiou · Posted

      Are Bobresmill gluten free oats ok for sensitive celiacs?
    • jenniber
      Disaccharide deficient, confusing biopsy results, no blood test

      By jenniber · Posted

      thank you both for the insights. i agree, im going to back off on dairy and try sucraid. thanks for the tip about protein powder, i will look for whey protein powder/drinks!   i don’t understand why my doctor refused to order it either. so i’ve decided i’m not going to her again, and i’m going to get a second opinion with a GI recommended to me by someone with celiac. unfortunately my first appointment isn’t until February 17th. do you think i should go gluten free now or wait until after i meet with the new doctor? i’m torn about what i should do, i dont know if she is going to want to repeat the endoscopy, and i know ill have to be eating gluten to have a positive biopsy. i could always do the gluten challenge on the other hand if she does want to repeat the biopsy.    thanks again, i appreciate the support here. i’ve learned a lot from these boards. i dont know anyone in real life with celiac.
×
×
  • Create New...

Important Information

NOTICE: This site places This site places cookies on your device (Cookie settings). on your device. Continued use is acceptance of our Terms of Use, and Privacy Policy.