B6 blood vial not protected from light - what happens?

I appreciate every ones input, and feel a little better about this. I just mainly needed to know that if the special conditions aren't met for some of the samples, could it cause the false high, like I was getting with the b6. I have no doubt that many things aren't ideal where my blood is tested, but wanted to know that if my b6 level says it's high, it really is high. I didn't want to start taking my B vites separately to adjust it if I didn't have to.