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Theophylline Peak
Test Code3040002599
Alias/See Also
1231100274
CPT Codes
80198
Includes
THEOPHYLLINE PEAK
Preferred Specimen
Green Lithium Heparin (Gel separator preferred)
Minimum Volume
0.5 mL plasma
Instructions
Specimen must be centrifuged within 2 hours after collection and plasma pulled off cells.
Specimen Stability
Refrigerated:
Methodology
Abbott Alinity
Reference Range
Performing Laboratory
LITTLE ROCK LABORATORY
Last Updated: August 26, 2026
Methodology
Abbott Alinity
Reference Range
Males/Females:
0-30 Days: 5.0-15.0 ug/mL
30 Days and above: 10.0-20.0 ug/mL
0-30 Days: 5.0-15.0 ug/mL
30 Days and above: 10.0-20.0 ug/mL
Performing Laboratory
LITTLE ROCK LABORATORY
Last Updated: August 26, 2026
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.
