Verkkoa vague result might indicate a very faint positive pregnancy test or even just an evaporation line. In this article, you’ll learn how to tell the difference. Here's what each signifies on a pregnancy test, and how to tell the difference. Verkkoalthough sometimes identified as a false result, the evaporation line should not be confused with a positive pregnancy test when it appears after an extended. Verkkoa positive pregnancy test, an indent line, and an evap line all look similar. Learn to tell the difference and how to always be confident in your results.