MERCURY, URINE
Reporting Title: Mercury, U
Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)
	Test Performed At:
		Mayo Medical Laboratories #8592
	Specimen Required:
		Submit an entire 24-hour urine collection in a urine container supplied by St. Louis Children’s Hospital. Refrigerate specimen during collection, and send specimen refrigerated. Call 314-454-4161 to obtain container. Please note collection start & stop times on container.
		NOTE:			Random urine collections (minimum volume of 5.0 mL) are also acceptable and should be ordered appropriately.
	Laboratory Notes:
		1.	Mix 24hr collection well and measure total volume collected. Record duration and total volume on 13 mL pour off tube and result in computer.
		2.	Aliquot 10 mL (minimum 5.0 mL) from the 24-hour urine collection (no preservative, that was collected in a clean, plastic urine container(s) with no metal cap(s) or glued insert(s), into a 13-mL urine tube or a clean, plastic aliquot container with no metal cap or glued insert . See special instruction section, “Urine Preservatives” for multiple collections. Record total volume collected and collection duration on aliquot tube.
		3.	See special instruction section, “Metals Analysis — Collection and Transport” for complete instructions.
		4.	Refrigerate specimen within 4 hours of completion of 24-hour collection. Send specimen refrigerated.
		5.	Random urines acceptable.
		NOTE:		24-HOUR VOLUME IS REQUIRED ON REQUEST FORM FOR PROCESSING.
	Urine Preservative Collection Options
		IMPORTANT NOTE:				The addition of preservative or application of temperature controls must occur within 4 hours of completion of the collection, OR an acceptable preservative must be added at the START of the collection. Urine tests which require that the preservative be added at the START of the collection are noted by an * (asterisk).
						Ambient	Yes
						Refrigerated	Preferred
						Frozen	Yes
						6N HCl	Yes
						50% Acetic Acid	Yes
						Na2CO3	No
						Toluene	Yes
						6N HNO3	Yes
						Boric Acid	No
						Thymol	No
	Reference Values:
		Normal: <10 mcg/ specimen
		Toxic concentration: >50 mcg/specimen
		The concentration at which toxicity is expressed is widely variable between patients. 50 mcg/specimen is the lowest concentration at which toxicity is usually apparent.
		The reference value is for a 24-hour collection. Specimens collected for other than a 24-hour time period are reported in unit of mcg/L, for which reference values are not established.
	Day(s) Test Set Up:
		Monday - Saturday
	Cut-Off Time:
	Turn Around Time:
		3-5 days
	CPT Code:
		83825
	Care Manager Order Name:
		Mercury, 24 Hour Urine Battery ONCE RTN
		Mercury, Random Urine ONCE RTN
	KIDDOS Order Name:
		Mercury 24 Hour Urine Battery
		Mercury Urine Random
	Cerner Order Name:
		24H Ur Mercury SLC
		Rnd Ur Mercury SLC

Last Updated 12/08