METHOTREXATE, BLOOD OSTEO 48
Methodology: Flourescence Polarization Immunoassay (FPIA)
	Test Performed At:
		St. Louis Children’s Hospital
	Specimen Required:
		Collect 2.0 mL (minimum 0.5 mL) of whole blood in a green-top (lithium heparin) tube(s). Protect specimen from light. A plain, red-top tube(s) or serum gel tube is acceptable.
	Laboratory Notes:
		Spin and separate.
	Reference Values:
		Toxic drug level (automatic callback): >5 micmol/L
		Every critical test result will be called automatically
	Day(s) Test Set Up:
		Monday - Sunday
	Cut-Off Time:
	Turn Around Time:
		Same day
	CPT Code:
		83520
	KIDDOS Order Name:
		Methotrexate Osteo 48
	Cerner Order Name:
		MTX Osteo 48 SLC

Last Updated 07/08

Last Reviewed 10/09