fasting blood tests

[hunnybunny]

sorry if this has been asked before, but why do they do fasting blood tests.
and what things do they show up? I recently had one and it was for loads of things, would they show up if you had anything serious wrong with you?

[Trixie]

Here we are...................


http://www.netdoctor.co.uk/ate/heartandblood/203867.html


Forgot to say don't go reading other things...............