This test is a quantitative measurement tryptophan.
10 days
82131
$100
5-7 ml of whole blood in a green top (sodium heparin) tube OR plasma can removed from spun down sample and sent frozen. A minimum of 0.5 ml of plasma is requested if sending separated.
Whole blood should be sent over overnight at ambient temperature. Plamsa can be removed once the sample has been drawn and sent frozen on dry ice. Do not freeze whole blood.
Call our laboratory at 1-800-473-9411 or contact one of our Laboratory Genetic Counselors for assistance.
Robin Fletcher, MS, CGC
Falecia Thomas, MS, CGC