Catalog ID Tacrolimus Tacrolimus
CPOE Test Name
Tacrolimus
Synonyms
FK-506, Tacro, Prograf Level
Specimen Type
Whole blood
Specimen Requirements
2 mL or 4 mL blood in purple top EDTA tube
Causes for Rejection
Wrong specimen type. Lack of acceptable labeling.
Reference Values
3.0-20.0 ng/mL
Critical Values
Toxic Level: >25 ng/mL
Interpretation
The complexity of the clinical state and individual differences in sensitivity to the immunosuppressive effects of tacrolimus will cause different requirements for optimal whole blood levels of tacrolimus. Individual whole blood tacrolimus values cannot be used as the sole indicator for making changes in the treatment regimen. Each patient should be thoroughly evaluated clinically before treatment adjustments are made and each user must establish his or her own ranges based on these clinical experiences.
Performing Lab
Core Laboratory, AD 3301, 721-2120
Turn Around Time
Results available by 3 PM
CPT / HCPCS Code
80197