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Test Code 1150 THEOPHYLLINE

CPT

80198

Specimen Type

Serum

Collection Container/Tube

Red top (NO gel)

VOL. (ML)

2

Specimen Storage

Refrigerated

SPECIAL INSTRUCTION

TROUGH: DRAW JUST PRIOR TO NEXT DOSE; PEAK: DRAW TWO HOURS AFTER DOSE OF LIQUID PREPARATION AND PLAIN, UNCOATED TABLETS; DRAW FOUR HOURS AFTER DOSE OF SUSTAINED RELEASED PREPARATIONS; DRAW SAMPLE 30 MINUTES POST INFUSION FOR LOADING DOSE.