Has anyone ever had evaporation lines from using a First Response pregnancy test? I did the test tonight, however got distracted after 1 minute, cam back an hour later and there were 2 pink lines. One was dark (control line) and the other was faint but pink. Let me know. Thanks.
2006-11-22 17:55:26 · 6 answers · asked by Julez81 2 in Pregnancy & Parenting ➔ Pregnancy
A positive result will almost always show up in a minute or less. You will not know when that line showed up if you didn't come back until an hour later. If that line showed up before the 10 minute mark then i would say you are pregnant but since you don't know i would re-test once again with whatever brand and be sure to watch it this time.
What's an evaporation line? Evaporation ("evap") lines result with the test's antibody strip just looks slightly different than the space around it. There is a line of antibodies (usually made from mouse cells) in the Control and Test section. The Control line binds with any liquid and turns pink (or blue, in tests using blue dye.) The Test/Result line turns pink only if pregnancy hormone is detected. If not, the moisture passes over this strip and does not turn pink. It may, however, become more visible when the light hits the moisture on the strip-- it may appear gray, colorless, like a "dent" in the test, or like a "ghost line." It may appear at any time-- as soon as the urine hits it, after a few minutes as the test absorbs the moisture, or after the 10-minute time limit. It may appear when the test is drying, or after it has dried. It may disappear as the test is drying, or after the test has dried, or not disappear at all.
The simple fact is that there is always "something there" that is slightly visible-- it's simply the antibodies on the test that would turn pink in the presence of hCG. When the test becomes wet, or as it dries, or after it dries, the antibody strip may become more visible. Therefore, all tests may have them. It is not a defect; it's just how tests are made.
A real positive is identified by its color (pink or blue, whatever the color of the test's dye is) and its appearance within 10 minutes of urinating on the stick. A line that appears after 10 minutes, regardless of color, must be considered an evap line and is caused by the test's chemicals changing. HPT's are rapid assay diagnostics, which means any results appearing after the "rapid" time limit of 10 minutes are invalid.
Go to http://www.peeonastick.com and there all it talks about is pregnancy tests
Good luck
2006-11-22 18:13:30 · answer #1 · answered by ஐ♥Julian'sMommy♥ஐ 7 · 0⤊ 0⤋
After an hour, the test is no good. There's no way to tell if it was an evaporation line or a positive line. You need to test again, and try to stay focused this time! I'm curious. What was so important that you forgot you were waiting to see if you were going to have a baby?
2006-11-22 18:02:06 · answer #2 · answered by Queen Queso 6 · 0⤊ 0⤋
i've got taken some being pregnant exams in basic terms for exciting as quickly as I knew I wasn't pregnant to work out if there is such element as evaporation strains. nicely i'm particular there could desire to be yet with each and all the different exams that I did and one in all them became a well-recognized reaction, i saved them for no less than a week and none of them ever confirmed any evaporation strains. i might say you're pregnant.
2016-10-17 10:32:31 · answer #3 · answered by ? 4 · 0⤊ 0⤋
Well if one of the lines is faint that means their is a line. When I found out I was pregnant with my son the pregnancy test like was so faint you couldnt even see it .
2006-11-22 18:03:04 · answer #4 · answered by ? 4 · 0⤊ 0⤋
Mine was that way also and now im 38 wks along expecting a little girl!
2006-11-22 17:58:36 · answer #5 · answered by Anonymous · 0⤊ 0⤋
sorry never had that happen retake the test
2006-11-22 18:01:36 · answer #6 · answered by Anonymous · 0⤊ 0⤋