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Evap lines
Posted: Mon May 08, 2017 1:01 pm
by gatesy08
I have a question and Evap lines on pregnancy tests. I took one yesterday and clearly looked negative about 6 or 7 hours later I took it out of the trash and it look like a very faint skinny second line had appeared. Why do tests do this? It freaks me out! Can I trust that it was negative?
Re: Evap lines
Posted: Mon May 08, 2017 1:24 pm
by Heather
Most tests say what the time window is in which a test's results should be read, and when they may no longer be accurate.
My understanding of why evap lines happen is what it sounds like: urine evaporates quickly in that time, and that changes the coloration of how the result looks, or can create shadows, etc.
Re: Evap lines
Posted: Mon May 08, 2017 3:19 pm
by gatesy08
Ok, so can i trust the negative rest because it was clearly negative at the 10 mins mark?
Re: Evap lines
Posted: Mon May 08, 2017 3:23 pm
by Karyn
Yes, you can trust the result.
Re: Evap lines
Posted: Mon May 08, 2017 7:18 pm
by gatesy08
Great thanks, Karen!