Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

Test Name: Sunquest Test Code Epic Procedure Code Or ID CPT Code:  

TACROLIMUS (FK506)

ORDERING INFORMATION:
Sunquest Test Code:
FK506G      Geisinger Epic Procedure Code: 80197.02         Geisinger Epic ID: 21539

SPECIMEN COLLECTION
Specimen type:
Whole blood
Preferred collection container:
Specimen required:
1 mL whole blood; minimum 0.5 mL.
Special notes:
Separate collection tube preferred. Collect 12 hours post oral dose.

SPECIMEN PROCESSING
Specimen processing instructions:
Do not centrifuge. 
Transport temperature:
Refrigerated.
Specimen stability:
Refrigerated: 7 days.
Rejection criteria:
Specimen other than EDTA whole blood. Stability limits exceeded.

TEST DETAILS
Reference interval:
2-12 ng/mL.
Therapeutic ranges vary with type of transplant, time post-transplant, clinical protocols and testing methodology. Results should be interpreted with clinical presentation and any signs of rejection/toxicity.
Critical values/courtesy alerts:
Above 15.0 ng/mL.
CPT code(s):
80197
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.  The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Test includes:
FK506
Methodology:
Chemiluminescent Microparticle Immunoassay
Synonyms:
Tacrolimus
Prograf
FK506
Clinical significance:
Tacrolimus is an immunosuppressive drug used to prevent rejection following transplant.
Doctoral Director(s:)
Hoi-Ying Elsie Yu, PhD, DABCC
Sheng-Ying (Margaret) Lo, PhD, DABCC    
Review Date: 10/28/2018

Performing Locations

Geisinger Medical Center

Performing laboratory: Toxicology
Technical Lead: Michael Sneidman
Frequency: Daily, 1st shift. Specimen must be at GMC by 2 PM for same day result.
Performed stat? No
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*GMC - Geisinger Medical Center; GWV - Geisinger Wyoming Valley Medical Center; GSACH - Geisinger Shamokin Area Community Hospital; GBH - Geisinger Bloomsburg Hospital;
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