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Test Name:Tacrolimus
Epic Order Code:LAB876
CPT Code:80197  
Specimen(s) Type:Whole Blood; Full tube required.
Acceptable Container(s):Tube top is purple (lavender).
Testing Schedule:Tested as received between the hours of 7 a.m.-3 p.m.; 7 days/week
Turn Around Time:STAT: NA
 Routine: 2 hours when received between 7 a.m.-3 p.m.; Specimens received after 3pm are held until the following morning.
Collection Information:No special patient preparation is required. Obtain specimen by standard collection procedures.
Transport Information:Deliver to lab immediately. All specimens must be signed into the laboratory.
Reference Clients:If unable to deliver to the lab within 1 hour, store and transport at 2-8° C. Do not centrifuge. Specimen must be received in the lab within 7 days. If longer storage is required, store and transport the specimen at -20° C for up to 30 days.
Causes for Rejection:Improperly labeled, incorrect container, contaminated, insufficient quantity, incorrect/delay in transport.
Reference Range:5.0 - 20.0 ng/mL
Additional Information:When elimination of tacrolimus is impaired, i.e., during cholestasis, tacrolimus metabolites may accumulate, and tacrolimus concentration may be overestimated.