Caffeine

Tube Type

Test ID   LAB706
EPIC Order
   CAFFEINE LEVEL
CPT Code(s)   80155
Group/Individual Test   Individual
Laboratory   Core Referral testing
Tube Station   30
Specimen Routine: 3 mL blood/gold SST tube/red top also acceptable
  Micro: 1 mL - blood
Availability Routine: Reference Laboratory - MAYO
Turnaround Time   2-3 days
Reference Range   See Separate Report.
Comments Collection Information: Caffeine samples should be collected as trough level immediately before the next dose.

Reviewed by J. Carr on December 01, 2025

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