Ferratin and folate tests - can anyone tell me what they mean?

[sevensevenseven]

Hi I'm almost 32 weeks pregnant with DC2. I've been out all day and have just got back to find a letter among for me to give a repeat blood sample (MW done bloods at 30 weeks) for ferratin and folate. It says to phone antenatal for a fuller explanation but obviously they're now closed and my MW is off duty.

I'm worrying as in my first pregnancy I was asked to give a repeat sample, the hospital then diagnosed pre-eclampsia and kept me in, 3 days later I delivered at 35+5.

Can anyone reassure me and explain what it means they're actually testing for?

among = asking, bloody iPhone!

ferritin is to test for anaemia. (I know this because DS had it done recently)

Thanks, that's one less worry. I'm a carrier of thalassaemia so I'd expect my iron levels to be low anyway.