How do I go about testing if DD needs the MMR booster?

[Reastie]

DD had an awful reaction to her initial MMR injection. I'm now stressing about her booster, but have read the initial dose is effective for up to 95% of children and the booster is only to make sure it's effective for everyone (so gets those who didn't build up immunity the first time).

I've read that I can pay privately for a "antibody titer" which would tell us whether DD has enough immunity or not (please correct me if I've got this wrong).

So, has anyone done this? How much did it cost? Where on earth do I go for this test? Can't actually find this out on google

Thanks

your GP should do this, but it is expensive (I think mine charges £85 per disease - so x3 for M, M and R, actually, I think Rubella titers are a little cheaper) and it requires a blood draw, which is no fun in preschool kids - what did your DD have?

thanks catherina I'll go to my gp about it then. DD was really out of sorts and unwell (she's never been that poorly before), she was vomiting, achey, and so ill and it lasted a number of days. She had spots so I assume she had a mild version of measles. I realise a blood test is awkward for a preschooler but tbh I think that a short amount of pain to do it would be preferable to the potential of days of very poorlyness (assuming we find out she is immune....

Thanks madrigals