Orderable EAP code:

LAB00287

Billable EAP Codes:

80002112 x 1

CPT Codes:

80197 x 1

Lab Section:

Core Lab

Turnaround Time:

Routine: 1 day

Test Schedule:

7 days a week

Units:

ng/mL

Specimen Requirements:

3 mL blood in a LAVENDER top tube (EDTA); redraw if specimen clotted. 

Specimen is stable for up to 7 days refrigerated (2 to 8 °C). If testing is delayed more than 7 days, store frozen at -20 °C or less.

Pediatric Specimen Requirements:

0.5 mL blood in a LAVENDER top tube (EDTA); redraw if specimen clotted.

Specimen is stable for up to 7 days refrigerated (2 to 8 °C). If testing is delayed more than 7 days, store frozen at -20 °C or less.

Reference Range:

Therapeutic range: 5 -15 ng/mL

Comments:

Test performed by immunoassay using Siemens Dimension EXL 200.

Samples for analysis of Tacrolimus should be collected 30 minutes to 1 hour prior to the next dose so that the measured concentration of drug represents trough level. Some other factors influencing therapeutic range, dose administered, and result interpretation include time since transplantation, the organ transplanted, co-administration of other immunosuppressants and interaction with other drugs that may increase or decrease Tacrolimus concentrations.

Synonyms:

FK506 (Tacrolimus), Whole Blood
TAC