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Caffeine, Serum

Message
Testing performed by Quest Diagnostics, Chantilly, VA


Test Code
8754


CPT Codes
83520

Preferred Specimen
Plain, red-top tube(s) (no gel)


Minimum Volume
1 mL (minimum volume: 0.5 mL) of serum


Transport Temperature
Ambient


Specimen Stability
Room Temperature: 5 days
Refrigerated: 7 days


Methodology
Immunoassay (IA)

Setup Schedule
Monday through Saturday


Report Available
1-2 days


Reference Range
Therapeutic concentration: 8-20 mg/L


Performed By
CoxHealth

Performing Laboratory
Quest Diagnostics, Chantilly, VA



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.