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Tested positive for nut allergy but always eaten them

(6 Posts)
6hearts4humphrey Fri 09-Feb-18 21:02:39

So DT1 had a reaction to a specific nut and was sent for blood tests, as a precaution DT2 was tested too. DT2 did not test positive for the same nut as DT1, but another nut that she has always eaten.

I've now told her she can no longer eat certain foods she has always eaten, cue tears. She has never had a reaction to these foods so I don't know what to do for the best. Has anyone experienced this - could the blood test be incorrect?

VandelayIndustries Fri 09-Feb-18 21:10:08

Well that’s all very strange. My sister and I both have children with nut allergies and none of their siblings have been tested nor has anyone ever suggested that they are tested. Was this at a hospital?

6hearts4humphrey Fri 09-Feb-18 21:47:25

Yes, blood tests at the hospital. We just got the results today, will need to discuss it with the doctor next week. The sibling is an identical twin so higher risk of having the same allergy.

canteatcustard Sat 10-Feb-18 18:04:20

eating and no reaction is proof enough that you are not allergic. testing can produce some odd results like this at times. btw I take it the test was ige not igg?
I have met identical twins and only one has food allergies, so I wouldn't stress too much
hopefully you can get this test result explained. have you been referred to an allergy clinic? a immunologist will explain and do skin prick tests and give a more detailed explanation.

6hearts4humphrey Sun 11-Feb-18 15:16:36

We had Ige bloods at the doctors which suggested allergies to the nuts tested, the doctor advised us to stop giving the dts the nuts that they had previously tolerated. The specialist we then saw said this had been poor advice and a retrograde step and we should have continued to eat the nuts that were tolerated. He tested for specific components in the nuts which showed dt1 could tolerate the 2 nuts first tested but that dt2 couldn’t tolerate one, as it showed a significant allergy. I’m worried by stopping the nuts altogether we have made dt2 more allergic. I feel the only option now is to follow up with an oral test at a clinic unless the doctor tells us otherwise.

trixymalixy Mon 12-Feb-18 13:40:45

Blood tests can give false positives and negatives. The only true test is to eat the food. If your DT is not reacting to it, then she's not allergic.

The doctor gave you poor advice in telling you to stop her eating it.

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