LYSOZYME (MURAMIDASE), URINE
Reporting Title: Lysozyme (Muramidase), U
Turbidimetric
	Test Performed At:
		Mayo Medical Laboratories #8417
	Specimen Required:
		Submit an entire 24-hour urine collection in a urine container (NO PRESERVATIVE) 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.
		NOTE:	Will also accept a random urine; order appropriately.
	Laboratory Notes:
		Mix the 24-hour urine collection well and measure/record the total volume collected. Aliquot 12 mL (minimum 5.0 mL) urine from the 24-hour urine collection, no preservative, into a plastic, 13-mL urine tube. Note the collection duration and total volume collected on urine tube. Send specimen frozen. See special instruction section, “Urine Preservatives” for multiple collections. Unless the 24-hour volume is known, specimens that are <24 hours should not be used to determine a 24-hour lysozyme excretion. Collections <24 hours will be reported as mg/L.
		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	No
					Refrigerated	Yes
					Frozen	Preferred
					6N HCl	No
					50% Acetic Acid	No
					Na2CO3	No
					Toluene	No
					6N HNO3	No
					Boric Acid	No
					Thymol	No
	Reference Values:
		0-3 mg/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 mg/L, for which reference values are not established.
	Day(s) Test Set Up:
		Monday - Friday
	Cut-Off Time:
	Turn Around Time:
		3-6 days
	CPT Code:
		85549
	Care Manager Order Name:
		24 hour specimen:		Miscellaneous Referral Test ONCE RTN
		Random specimen:		Lysozyme (Muramidase), Random Urine ONCE RTN
	KIDDOS Order Name:
		24 hour specimen:		Miscellaneous Lab Test
		Random specimen:		Lysozyme Urine Random
	Cerner Order Name:
		24 hour specimen:		Misc Ref SLC
		Random specimen:		Rnd Ur Lysozyme SLC

Last Updated 02/08