24 urine test...what are they checking for exactly???

so today i went for my weekly check up...i am 30 weeks...for the past few weeks i either have had traces of protein or protein in my urine...so i will do the 24 hour urine test...what are they checking for? i assume it cant be for pre-eclampsia since i always have perfect blood preasure. the doctor was very short and i didnt get to ask any questions. has anyone else had to do this and what were they checking for ...and what did it turn out to be????????????????????????

I think protein in the urine can be a sign of pre-eclampsia.   My BP was up last visit (I think it was because I took sudafed, but I didn't figure that out until later).    They took some blood and want me to do a 24 hour urine.   I asked if it was to check for pre-eclampsia and was told yes.   I would call the office and ask to find out for sure what they are checking for.
Amy

I've seen 24h collections for calcium but maybe protein and ketones?

It's to check for protein in the urine usually. I already had to do this in my pregnancy because of my previous pregnancy with high blood pressure. I am sure I'll have to do it again. I'm not sure what they would do necessarily if it shows protein in the urine. Mine never did, luckily.

They want to know how much protein is in there.  I had that done and was one of the reasons for delivering my twins early.  It was up from the day before all while i was on bedrest. 

I always had low blood pressure but babies can change all that during pregnancy.

Good luck!
Sandy