PTH and B12 =Fasting Question

[SassySharon]

Today I had PTH (Parathyroid) and B12 bloodwork drawn.  I was not advised to fast nor was I asked if I had,  I had approx 1/2 cup coffee approx 3 hrs before blood was drawn and had nothing else.  Later on I thought about it some and googled it.  It says I should fast.  Okay, too late.  How serious is this!  Will that throw my labs off significantly.  I am so disappointed because I really want these results to be correct.  Please tell me it will not effect it!!!!  ~sass~

[Barb135]

While we don't "want" anything to be wrong, we know there's something; when we don't feel good, we're always hoping that the next set of tests will give us the answers.  

[SassySharon]

okay, thank you!    I am hoping for some definitive answers, can't keep this up!  It is really an odd feeling when you hear yourself saying that you hope that the doctors or tests find something wrong! Go June 4th to see the Pulmonologist for results  

[Barb135]

Not sure about the PTH - shouldn't affect it, but I could be wrong.

I was told that B12 did not have to be fasting; in fact, the first time, in recent years, I had it done, my doctor sent me straight to the lab from his office - mid afternoon.  That blood test got my PA dx. and got me started on shots.