Fluorescence in situ hybridization (FISH): Aneuscreen
	Test Performed At:
		Cytogenetics Laboratory at Washington University Pathology
	Specimen Required:
	SEND ONLY 1 OF THE FOLLOWING SPECIMENS:
		Amniotic Fluid:
		Discard first 2 mL of amniotic fluid. Collect 15-25 mL in a sterile syringe, use sterile technique to transfer to 15 mL sterile screw-top plastic conical tubes for transport. Uniquely identify twins.
		Blood:
		Collect 1-2 mL (infants), 3-5 mL (Children), and 5-10 mL (Adults) blood into a sterile 15 mL green-top (sodium heparin) tube(s). Invert tube immediately upon completion of blood collection to prevent formation of clots. Send to laboratory the same day.
		NOTES:	Include a completed Cytogenetics Requisition Form and forward it with the specimen.
	Laboratory Notes:
		Do not centrifuge. Do not freeze. Send to lab ASAP.
	Reference Values:
		An interpretive report will be provided
	Day(s) Test Set Up:
		Monday-Friday
	Cut-Off Time:
	Turn Around Time:
		1-2 days
	CPT Code:
		88271-	molecular cytogenetics; DNA probe, each
		88275-	interphase in situ hybridization, analyze 100 - 300 cells
		88291-	cytogenetics and molecular cytogenetics, interpretation/report
	Care Manager Order Name:
		Cytogen Tracking
	Cerner Order Name:
		Cytogen Tracking

Last updated 04/08