MAGNESIUM, TIMED URINE BATTERY
	Test Performed At:
		St. Louis Children’s Hospital
	Specimen Required:
		Submit a timed urine collection in a metal-free urine container supplied by St. Louis Children’s Hospital. Call 314-454-4161 to obtain a container. Refrigerate specimen during collection, and send specimen refrigerated. No preservative.
		NOTES:	1.	COLLECTION DURATION IS REQUIRED ON COLLECTION CONTAINER FOR PROCESSING.
			2.	Follow instructions on “Urine Collection” in policies section.
	Laboratory Notes:
		Mix specimen will before pouring aliquot tube. Measure total volume collected, aliquot specimen into conical tube. Spin and separate. Note collection duration and total volume collected on container/aliquot tube.
		NOTE:	If specimen is >4 hours old, acidify to pH <2 with concentrated HCL
	Reference Values:
		No established reference values
	Day(s) Test Set Up:
		Monday - Sunday
	Cut-off Time:
	Turn Around Time:
		Same day
	CPT Code:
		83735
	KIDDOS Order Name:
		Magnesium Timed Urine Battery
	Cerner Order Name:
		Tmd Ur Magnesium SLC

 Last Reviewed 12/09