Ok just done the second attempt as the first clotted or something. I managed a few months ago but now my blood just wants to join itself up around the rim of the little pot.
I have sore fingers, this time one pad never bled at all, one bled only when I didn't want it too. Gave up and sent the useless vial off and expecting another message back to say I need to repeat.
What can I do?
I know about warm water, standing up to stab your finger and drinking beforehand. Can I try somewhere other than a finger? Use a teeny scalpel?