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Help with blood results please

Dee21
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Dee21 Apprentice
Dee21
Posted

Hi everyone, I have had 2 celiac blood test done, the first when I was gluten free which was anti TTG IgA: 4 units range 0-20. IgA: 2.9g/L 0.8-4.0 range. Had my second result today after a 4 week gluten challenge and results are TTG IgA: 3   IgA 3   same range. The nurse rang me with results and said another false negative and to wait for the doctor to ring me tomorrow, I am no expert but I thought this means a negative, can anyone help me work this out please.

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Scott Adams Grand Master
Scott Adams
Posted

Welcome to the forum! When you listed the ranges, were those the normal range? Meaning that above those would be considered the high ranges? I ask because different labs have different ways of showing their results. If you can clarify this it would be great.

Dee21 Apprentice
Dee21
Posted
  • Author
2 hours ago, Scott Adams said:

Welcome to the forum! When you listed the ranges, were those the normal range? Meaning that above those would be considered the high ranges? I ask because different labs have different ways of showing their results. If you can clarify this it would be great.

I'm not sure Scott, newbie,   I'm presuming it's within the normal range, thanks for your reply. This is my first result while off gluten.

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Scott Adams Grand Master
Scott Adams
Posted

Yes, if you were gluten-free for 6 weeks prior to this test it can lead to a false negative test. You need to eat gluten daily for 4-6 weeks before a blood test, and at least 2 weeks prior to a biopsy, for the results to be accurate.

Dee21 Apprentice
Dee21
Posted
  • Author
1 hour ago, Scott Adams said:

Yes, if you were gluten-free for 6 weeks prior to this test it can lead to a false negative test. You need to eat gluten daily for 4-6 weeks before a blood test, and at least 2 weeks prior to a biopsy, for the results to be accurate.

Thank you Scott, I just did a 4 week gluten challenge and didn't think it was enough, think a biopsy is next.

Scott Adams Grand Master
Scott Adams
Posted

Let us know how it turns out! Also, the results may not rule out non-celiac gluten sensitivity, and you can ask your doctors about that possibility.

Dee21 Apprentice
Dee21
Posted
  • Author
4 hours ago, Scott Adams said:

Let us know how it turns out! Also, the results may not rule out non-celiac gluten sensitivity, and you can ask your doctors about that possibility.

I think I have DH too and it's getting worse so will let you know the outcome, thanks so much again.

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