Specimen Collection Manual and Test Catalog
TACROLIMUS LEVEL
Geisinger Epic Procedure Code: LAB3130 Geisinger Epic ID: 21539SPECIMEN 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
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:
4-12 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:
CPT code(s):
80197
15.0 ng/mL and above.
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.
The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Test includes:
FK506
Methodology:
Electrochemiluminescence Immunoassay
Synonyms:
Tacrolimus, Prograf, FK506, FK506G
Clinical significance:
Tacrolimus is an immunosuppressive drug used to prevent rejection following transplant.
Doctoral Director(s):
Review Date:
12/17/2024
Hoi-Ying Elsie Yu, PhD, DABCC, FADLM
Sheng-Ying (Margaret) Lo, PhD, DABCC
Sheng-Ying (Margaret) Lo, PhD, DABCC
Performing Locations