Karyotype, Peripheral Blood Chromosome Analysis: Cytogenetics

Tube Type

Test ID		LAB5505A
EPIC Order		Cytogenetics Constitutional Analysis
CPT Code(s)		88230, 88262, 88280 (if performed), 88291
Group/Individual Test		Individual
Laboratory		Cytogenetics
Tube Station		30 (Core Laboratory)
Specimen	Routine:	5 mL whole blood/Green Sodium Heparin Tube; See Comments for additional specimen information
	Micro:	2-5 mL whole blood Pediatric: Sodium Heparin/Green Top Tube If additional testing is requested, a larger sample may be requested
Availability	Routine:	24 Hours/7 Days (collection)
	RUSH:	RUSH STATUS AVAILABLE 24 hours/7 days in lieu of STAT
Turnaround Time	Routine:	<28 days
	Rush:	Preliminary within 3 business days with Final within 14 days.
Reference Range	Normal:	N/A
Comments	Deliver sample to the Core Laboratory. If post-mortem, obtain by cardiac puncture within 1 hour. Keep at room temperature.

Reviewed by J. Carr on January 14, 2026

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514