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Whats an evaporation line?

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Whats an evaporation line?

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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.

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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–

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The positive line is really faint. Is this okay? I took another test and the line is lighter. Does this mean anything? Should it get darker? I took several tests and got both negatives and positives. What gives? Hey, I got a positive test but my period started anyway! Huh? The line appeared after the 10-minute time limit. Is it still positive? The line disappeared after the time limit! Is it still positive? Will I get a positive test at the same DPO as I did in my last pregnancy? Do I have to test with my first morning urine (FMU)? What are the different types of tests, and how do they work? What’s the deal with “the rabbit dying”? My period is really late, but my HPT’s are still negative. What’s up? Do evaporation lines disappear? Which tests are more sensitive, ones that measure smaller or larger amounts of hCG? How much hCG should be in my urine during early pregnancy? My digital test said “Not Pregnant,” but the test stick has 2 lines. Am I really pregnant? Can using too much or to

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