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HelpTest Code THEO THEOPHYLINE LEVEL
Performing Location
Collection Instructions
Refer to venipuncture protocol
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Steady state: approximately two days for adults oral and IV doses 1-2 days for children on oral or IV doses
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Peak: 4 hours after oral dose for TheoDur
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Trough: draw immediately prior to next oral dose
Collection Container
Gold top or Red Marble top vacutainer
Specimen Required/Volume
1.0mL
Specimen Type
serum
Turn-Around Guidelines
Upon arrival daily
Reference Values
10.0 - 20.0 ug/dL
Toxic levels: >20.0 ug/dL
Method
VITROS5600-Alkaline Phosphatase Inhibiting Assay
CPT
80198
LOINC
4049-3