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Test Code FK506 Tacrolimus

Important Note

Test batched on dayshift (8a-4p) seven days/week with expected TAT of 3 hrs. Results same day for samples received in Core Lab by 1pm.

Clinical Indications

Clinical Indications: For monitoring whole blood tacrolimus concentration during treatment of organ rejection following transplantation

Additional Test Codes

Epic Order Name: Tacrolimus Level (FK506)
Sunquest Order Code: FK506
Px Order Code: LAB2233

Specimen Collection Type

Lavender

Minimum Collection Volume

1 mL

Reference Range

5.0 – 15.0 ng/mL

Critical Value

<4.0 ng/mL or >20.0 ng/mL

Interpretation

Target concentrations vary by type of transplant, patient response, concomitant immunosuppression and post-transplant time interval. Test was performed on whole blood using immunoassay on the Abbott Alinity i platform.

Rejection Criteria

Clotted Specimen

Specimen Availability for Add-on Testing

2 Days

Specimen Stability

7 Days refrigerated

Day(s) Performed

 Monday through Sunday (8a-4p). Results same day for samples received in Core Lab by 1pm.

Performing Lab- Department

TUKHS – BH – Special Chemistry

CPT Code

80197

LOINC Code

11253-2

Test Alias

Prograf

Additional Information / Notes

Specimens spun and used for BNP testing CANNOT be used for Add-on testing