the truth about evaps?

Discussion in 'Pregnancy Tests' started by rosie5637, Jun 4, 2011.

  1. rosie5637

    rosie5637 BFP 7/7/11 AI

    Feb 12, 2010
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    is there anyone out there who can give a proper explantion of what evaps are?

    what they look like?

    how long they take to show?

    do they disappear or stay visible?

    are evap lines as thick as bfp lines?

    can evaps be pink?

    what are the chances of getting evaps on several tests?

    any other useful info on evaps?
  2. MrsStutler

    MrsStutler Mom of 3!

    May 18, 2011
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    I will try to answer your questions to the best of my knowledge
    1. Evaps look different on different kinds of tests.
    Blue dye tests are known for colored evaps and false positive problems.
    Pink dye tests are better, but they are still subject to the evap phenomenon. They typically look like a ghost like line, gray or white in color. Sometimes you can see the antibody strip as well, which I have seen on many frer tests, and it too looks like a thin ghost like, colorless line.
    2. Evaps can show up within the time limit, but it is rarer than showing up after the time limit. 10 min. is usually the "universal" time limit, but you have to read the insert that came with the test to be sure.
    3. Some evaps do disappear, but most hang around or even get worse as more time passes. That is why digging a test out of the trash can be dangerous.
    4. Some evap lines, especially the antibody strip ones, are the same width as the control line. Some are skinny, it all depends on how the test dried.
    5. Evaps are not pink. Although this is subject to your eyes! Evaps are typically pretty good at looking like super duper faint positives. A real evap is not pink, although it may look like it to the naked eye.
    6. The chances of getting an evap on several tests from the same batch are reasonably good. The chances of getting an evap on several tests of differing brands is pretty low.
    7. I once read some good advice that will save a lot of heartache later. If you think you see a line, then try another brand test, AND try another test in two days. By using a secondary brand then the chances of seeing an evap twice goes down and if it is a true BFP it will get darker in the coming days.
  3. Mellybelle

    Mellybelle Well-Known Member

    Jun 19, 2010
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    Perfect explanation!
  4. MiissMuffet

    MiissMuffet Well-Known Member

    Sep 12, 2009
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    Yes evaps can be pink!
  5. asibling4gi04

    asibling4gi04 NO LONGER PREG-NUMB

    Mar 10, 2011
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    0 if you want some really good evap pics and info..Good luck!
  6. lynne192

    lynne192 mum 2 James & Libby

    Apr 20, 2010
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    1 they explain everything and give you sample pictures xx

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