ANDY...help with a strange result!

[Guest guest]

A while ago our metametrix panel came back with a wildly elevated 5-

HIAA, 160 in a ref range of 1-12. I went nuts about it, and then

began to suspect that my son had stolen a piece of a banana before

the blood draw and thought that since 5-HIAA is downstream of

tryptophan metabolism that the banana was responsible. I just

realized that the 5-HIAA level was from urine, not blood, collected

overnight before the blood draw and the banana theft. This still

might reflect food consumption, but that is such a hugely elevated

number it must bear significance...but WHAT??? I know that serotonin

is also in this pathway, but serotonin is not in this study. A

previous GS urine test shows serotinin in normal range. ANY IDEAS?

Is this a false positive?

Thanks

Karin