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Published on April 06, 2015

Tacrolimus; Timed

Tube Type = LAvender Top or Lavender Bullet

Tube Type

Test ID LAB5366
EPIC ORDER TACROLIMUS LEVEL, TIMED
CPT Code(s) 80197
Group/Individual Test Individual
Laboratory Special Chemistry Lab
Tube Station 30
Specimen Routine: 3 mL blood/lavender EDTA tube; See Comments
Micro: 500 µL blood/lavender EDTA microtainer
Stability  Room Temperature: 14 days
Refrigerated (2-8°C): 14 days
Frozen: NOT ACCEPTABLE
Off-Site Collections: Ambient/Room Temperature is acceptable. Samples may be refrigerated (2-8°C). Do NOT freeze. Ship ambient or with refrigerated cold pack(s) only. Do NOT use dry ice. Do NOT use frozen cold packs.
Availability Routine: Daily; See Comments
  STAT: N/A
Turnaround Time:

 Samples for tacrolimus testing must be in the Core Laboratory by 12 pm (noon) for same day testing.
Results are available by ~5pm.
Comments:
  • Methodology: Liquid Chromatography Tandem Mass Spectrometry
  • Time of collection since dose, must be documented.
  • Multiple test requests with the same sample type will require additional volumes for testing.
  • Pediatric microtainer devices available from Phlebotomy Services
  • Used for pharmacokinetic studies. 

Reviewed by J. Carr on November 18, 2025

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514