What does (eg) 25m IU mean on a test

[Secret_k]

Iv seen a lot of people saying that there pregnancy tests are (then some numbers) what does that mean?

Eg 25m IU of sensitivity??

 

[k4th]

It means that you need to have 25 units of pregnancy hormone (per ml I think) to be detected by the test - if you are pregnant.

The lower the number, the more sensitive the test. So a 25mlu test is more sensitive than a 50mlu test for example.

 

[Secret_k]

Oooo I didn't no that lol thank you!
I done a test about 2 weeks 3 days after the date of my missed period an I used a test that was 25mlu an I literally had a wee (or a dribble as I'd just been lol) stood up and there it was the 2 darkest lines - I have a scan on Monday to see how far I am but I'm guessing I would have been 6 weeks at the time of the test would it come up that quick and dark that soon?

 

[k4th]

Yep it could well do! Everyone's hormones double at different times - by 6 weeks you could easily have been in the 100's or 1000's - so it could well come up that quickly even with a dribble!! Especially with a test only looking for 25mlu

Congratulations!! And good luck with the dating scan

 

[Secret_k]

Ah thanks so much for your help and thank you I'm so scared but can't wait )