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HelpEpic Code LAB35 Theophylline, Blood Level
Test Name Alias
Theophylline Blood Level | Aminophylline | Choledyl | Tedral | Slo-Phyllin | 8332
Interface Order Alias
10260
Specimen Requirements
Submit only one of the following specimens:
Preferred
Specimen Type: Plasma
Container/Tube: Mint Green Top (Lithium Heparin Gel)
Volume: 4.5 mL
Minimum volume: 0.5 mL plasma
Collection Instructions: Centrifuge within 2 hours. Indicate date and time of last dose.
Acceptable
Specimen Type: Serum
Container/Tube: Gold Top (Serum Separator-SST Gel)
Volume: 5 mL
Minimum volume: 0.5 mL serum
Collection Instructions: Allow specimen to clot for 30 minutes and centrifuge within 2 hours. Indicate date and time of last dose.
Red top (plain) or Green top (Lithium Heparin, Non-Gel) are also acceptable specimen containers.
Specimen Transport Temperature
Refrigerate
Special Instructions
Inpatients: Please contact your local inpatient pharmacy for information regarding appropriate timing for blood drug level orders, if needed.
Avoid gross hemolysis
Specimen Stability
Ambient: 8 hours
Refrigerate: 24 hours (48 hours if aliquoted serum/plasma)
Frozen: aliquot plasma/serum for longer storage
Laboratory Retention: 72 hours
Test Frequency
Available 24 hours, usual TAT 1 day
Performing Department
Chemistry
Performing Department Laboratory Location
Corewell Health Reference Laboratory, Grand Rapids, MI
Corewell Health Zeeland Laboratory, Zeeland, MI
Corewell Health Lakeland St. Joseph Laboratory, St. Joseph, MI
Methodology
Kinetic Interaction of Microparticles in Solution (KIMS)
CPT
80198
CDM Code
3018019801
Epic Test ID
1230101210
LOINC
Theophylline Lvl: 4049-3
Mayo Access Code
SHO8332
Reviewed Date
3/7/2024
Updated Date
3/15/2024 - Reference Range