Positive Home Test, Negative Lab Test - Manufacturer's Response

Hello Everyone,

A few weeks ago I received a positive result from a Biocard home celiac test.   I then received a negative lab result (they only ran one test).  I emailed the company to ask them about the different results.  This is the response I received:


In clinical studies in the EU where the Biocard has been used and there has been a discrepancy between the equivalent Elisa lab test and the Biocard (Biocard “+” and Labe “-“), over time the “-“ lab tests become “+”. This has been explained by the sensitivity, specificity and cut-off limit of the Biocard relative to lab testing. The cutoff for the Biocard is 5u (international units). Many laboratory tests are between 10 and 20u.

So should I wait to see if I eventually get a positive blood test?   Will my doctor even consider retesting?  Should I just go ahead and try a gluten free diet?

I have an appointment with a Naturopathic Doctor next week.   I'll see what she has to say.

Thanks for listening.