Brunette - I know with my test they told me the measurement straight away, but i'm assuming even without the blood test they still have to combine it with your age to get a combined risk factor??? I don't know how it works without a blood test, or with twins sorry. Could be wrong though so definitely ask them!! And I'm guessing that Amolin is the same thing really, is it lanolin? I don't know if this is true only of Lansinoh or not but I know it doesn't have to be removed before breastfeeding and apparently it's the only one that doesn't, which makes it a bit more convenient. Could be a marketing ploy though?!