True or fuse?

Annemarie • I'm 31 years young.. i live in west bromwich uk.. i have crohn's disease 😟 so hope this works 😊
Hi ladies just need some advice. I see Alot about evap lines on here and I've been told that there is no such thing as an evap line I was told this by a doctor. Also you can get a false negative but not a fuse positive.. a line is a line and any line is a positive.. just wondering as so many ladies comment on hpt's stating it's an evap line.. so is the doctor wrong?