University of Iowa
Diagnostic Laboratories
(UIDL) Test Directory

319-384-7212 (local)
1-866-844-2522 (toll free)


Tacrolimus
Order Code: TACRO
Order Form: Laboratory Requisition
Specimen:
Whole Blood
Collection Medium:
Lavender top tube (EDTA)
Alternate
Collection Media:
Call laboratory for additional acceptable specimen collection 
containers.
Minimum:
Preferred minimum:  3 mL whole blood in lavendar top tube (EDTA), mix 
well.
Absolute minimum:  1 mL whole blood
Testing
Schedule:
Availability: one batch per day. Cutoff time for same day service is 
0900. Results available 1200 daily.
Analytic Time:
24 hours (upon receipt in laboratory)
Reference Range:
Therapeutic range 5.0 - 20.0 ng/ml
Methodology:
Chemiluminescent Microparticle Immunoassay
Sample
Processing:
Submit whole blood in original container.
Label transport tube with two patient identifiers, date and time of 
collection.
Do Not Centrifuge.
Sample
Storage:
Refrigerate.
Transport
Instructions:
Place specimen into zip-lock type bag, seal bag.
Place requisition into outside pocket of bag.
Ship ambient or refrigerate.
Instructions:
Trough sample preferred.
CPT Code:
80197

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Updated: 10/19/2009