THALLIUM, URINE
Reporting Title: Thallium, U
Methodology: Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)
	Test Performed At:
		Mayo Medical Laboratories #8603
	Specimen Required:
		Submit an entire 24-hour urine collection in a urine container (no preservative, metal caps or glued inserts) 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 and stop times on container for 24-hour specimens.
		NOTE:		1.	Send to lab immediately after collection is completed.
				2.	Random urine collections will also be accepted and should be ordered as such.
				3.	High concentrations of gadolinium and iodine are known to interfere with most metal tests. If either gadolinium- or iodine- containing contrast media has been administered a specimen cannot be collected for 96 hours.
	Laboratory Notes:
		1.	Mix the 24Hr urine specimen (submitted in a clean, plastic urine container(s) with no metal cap(s), glued inserts, or preservative) well and measure the total volume collected. See special instruction section, “Urine Preservatives” for multiple collections.
		2.	Aliquot 10 mL (minimum 1.0 mL) into a plastic, 13-mL urine tube or a clean, plastic aliquot container with no metal cap or glued insert. See special instruction section, “Metals Analysis — Collection and Transport” for complete instructions. Record total volume collected and duration of collection on aliquot tube.
		3.	Refrigerate specimen within 4 hours of completion of 24-hour collection. Send specimen refrigerated.
		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.
						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:
		<10 mcg/specimen
		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:
		83789
	KIDDOS Order Name:
		Thallium 24 Hour Urine Battery
		Miscellaneous Lab Test (for Timed or Random Collections)
	Cerner Order Name:
		24H Ur Thallium SLC
		Misc Ref SLC (for Tmd or Random collections)

Last Updated 03/10

Last Reviewed 03/10