Specimen Requirements

Title

TACROLIMUS (PROGRAF, FK506)

Specimen Requirement

Draw blood in a lavender EDTA tube/1.0 mL whole blood refrigerated.

Methodology

Liquid chromatography/tandem mass spectrometry (LC/MS-MS)

Stability

Room Temperature 24 hours, Refrigerated 14 days, Frozen 14 days

Reference Range

By Report*

Turnaround

2-3 days

Clinical Use

Tacrolimus is an immunosuppressive drug that is believed to prevent rejection in transplantation patients. Measurement of tacrolimus blood levels may be of use in monitoring patients receiving this drug.

Test Code

TACRO