The only thing my original comment only talks about what is protected by 4th amendment. If your test results aren't protected by the 4th, why bring them up?
I think it’s covered by the 4th amendment based on the words as written and the intent at the time of writing it. So, yes I absolutely think the 4th amendment protects such documents.
The Supreme Court has uses a narrower definition. That’s doesn’t mean they are correct but the justice system isn’t actually based on the constitution directly it’s based on past rulings by the Supreme Court.
My bringing up HIPPA was simply pointing out that even though the legal system doesn’t protect them based on the 4th, it does protect them. Further the reason this part of HIPPA exists is the same reason the 4th was written.