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Test Code LAB10432 Tacrolimus (FK506, Prograf®)

Department

SEND OUTS

Reference Lab Test Number

FK506

Refer To

Warde Lab

Primary Collection Container

Lavender 6 mL (K3EDTA)

Transport

Whole blood refrigerated

Preferred Transport Temperature

Refrigerated

Processing

Send 1.0 mL whole blood.

Stability

Ambient: 24 hours

Refrigerated: 7 days

Frozen: Unacceptable

Minimum Testing Volume

0.5 mL

Reference Range

5-20 ng/mL

Toxic: >26 ng/mL

Organ Post Transpl.  (Months)     Trough Level
Kidney                       up to 3        7.0-20.0 ng/mL
                                  >3               5.0-15.0 ng/mL

Heart                        up to 3         10-20 ng/mL
                                  >3               5.0-15.0 ng/mL

Liver                          up to 12      5.0-20.0 ng/mL

Methodology

LC/MS/MS

Performed

Monday – Saturday

Reported

3 Days

CPT Codes

80197

Unacceptable Conditions

Clotted sample.