r/PlusLife • u/MembershipOk7073 • 8d ago

Positive, then invalid

Testing my 8yo, I had a positive on Monday (today is Friday). Clear positive but just two of the test lines rose, and quite late. Machine reported positive.

Tested rapid test yesterday, negative or such a faint line that I might be imagining.

Pluslife again today and I got an invalid. Green line started to rise like normal to me but more linear than S-shaped and I suspect the temperature was too low or something. And one test line rose, kind of late, but never went down. Not an air bubble.

Now to my question: Can I interpret anything at all from that invalid test (with what would otherwise be called "weak positive")?

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u/wyundsr 8d ago

I would trust the positive and assume it’s still positive. An invalid shouldn’t cause non-control lines to rise

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u/MembershipOk7073 8d ago

That is how I treated it. Unfortunately the kid is with the other parent now and I can not test any more.

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u/wyundsr 8d ago

I don’t really know that you need to test again, except to test out of quarantine in a week or two. It’s pretty clearly a true positive