Test Directory

Test Code
CAFE
Test Name
Caffeine, Quantitative, Serum
CPT Codes
80155
Expected Turnaround Time
1 day
Clinical Utility

Useful for monitoring therapy in the treatment of neonatal apnea and assessing toxicity.

Specimen and Container Info

Preferred Specimen Type: Serum  

Preferred Collection Container: Red Top, Plain

Desired Specimen Volume: 2 mL  

Processing and Submission Instructions
  1. Centrifuge specimens for 5 minutes at 3000 rpm.
  2. Transfer serum or plasma to a plastic aliquot tube.
Transport Instructions

Transport to the laboratory refrigerated.  

Causes for Rejection

Specimens collected in separator tubes will be rejected.  

Methodology
Enzyme Immunoassay (EIA)
Reference Intervals

 Age

Reference Interval (µg/mL)

All Ages

8.0 - 20.0

The Therapeutic Range for the treatment of Neonatal Apnea is 8 - 20 µg/mL.

Performing Location
Redeemer Health, Roble Road Core Laboratory
Alternate Names
  • Durvitan
  • NoDoz
  • Vivarin
Testing Schedule
Routine daily, STAT testing available