Digoxin

Tube Type

Test ID		LAB23
EPIC Order		DIGOXIN LEVEL
CPT Code(s)		80162
Group/Individual Test		Individual
Laboratory		Core Laboratory
Tube Station		STAT: 888; Routine: 30
Specimen	Routine:	7 mL blood/navy blue plain tube/red plain tube also acceptable; See Comments
	Micro:	300 µL blood/red top (no gel) pediatric bullet
Stability	Unspun:	Unspun: < 4 hours recommended
	Spun/Separated:	Room temperature: 8 hours
		Refrigerator: 1 week
		Frozen: 6 months
Availability	Routine:	24 hrs/day
	STAT:	Yes
Turnaround Time		STAT: 1 hour; Routine: 2 hours
Reference Range	Therapeutic:	0.8-2.0 ng/mL (collected 6 hr after dose)
	Critical:	>2.0 ng/mL

Comments	Red Top Pediatric Tubes must NOT contain Serum Separator Gel. Collection information: Digoxin samples should be drawn 6 - 8 hours after dose. This test should not be ordered on patients receiving Digibind. Patients receiving Digibind should be monitored using Free Digoxin levels. Call Referral Testing for more information at (984)974-1414.

Reviewed by J. Carr on January 09, 2026

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