Tacrolimus
| Alternate Names | Prograf, FK506 |
| Ordering Recommendation | Tacrolimus is an immunosuppressive drug believed to prevent rejection in transplant patients. Measurements may be used to optimize dosing and monitor patient adherence. |
| Specimen | Whole Blood |
| Container Type | Lavender Top Tube
|
| Methodology | Homogenous Enzyme Immunoassay |
| Reference Range |
Not Established; No definitive therapeutic or toxic ranges have been established. Optimal blood drug levels are influenced by type of transplant, patient response, time post-transplant, co-administration of other drugs and drug formulation. The following trough range is a suggested guideline: 5.0-20.0 ng/mL
|
| Stability | 7 days |
| Transport Temperature | Refrigerate 2°-8° C |
| Instructions | A trough sample (12 hours after the last dose) is recommended for measurement of tacrolimus. |
| Days Performed | Tuesday, Friday |
| Report Available | 1-4 days |
| NY State Available | Yes |
| LOINC | 74096-9 |
| CPT Code | 80197 |
