GASTRIN, BLOOD
Radioimmunoassay (RIA)
	Test Performed At:
		Barnes-Jewish Hospital Laboratory
	Specimen Required:
		Collect 3.0 mL (minimum 2.0 mL) of whole blood in a plain, red-top tube(s) or serum gel-tube(s) from a fasting patient unless a stimulation test is being performed. Send to lab immediately.
	Laboratory Notes:
		Spin, separate and send 1.0 mL (0.6 mL minimum) in 2 plastic tubes freeze within 4 hours of draw. Freeze on dry ice and send to BJS on wet ice.
	Reference Values:
		13-115 pg/mL (fasting)
		Critical value (automatic call back):	> or = 2000 pg/mL
	Day(s) Test Set Up:
		Tuesday, Thursday
	Cut-Off Time:
		10:00 a.m.
	Turn Around Time:
		1-6 days
	CPT Code:
		82941
	Care Manager Order Name:
		Gastrin ONCE RTN
	KIDDOS Order Name:
		Gastrin
	Cerner Order Name:
		Gastrin

Last Updated 08/08