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HelpTest Code THEO Theophylline, Serum
Additional Codes
| EPIC Test Codes | |
|---|---|
| LAB0208272 | THEOPHYLLINE |
Specimen Required
Supplies: Sarstedt Aliquot Tube, 5 mL (T914)
Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 0.5 mL Serum
Collection Instructions:
1. Within 2 hours of collection, centrifuge the specimen.
2. For serum gel tubes, serum may sit on gel refrigerated or aliquoted into a plastic vial.
3. For red top tubes, aliquot serum immediately into a plastic vial.
Useful For
Assessing and adjusting theophylline dosage for optimal therapeutic level
Assessing theophylline toxicity
Method Name
Kinetic Interaction of Microparticles in a Solution (KIMS)
Reporting Name
Theophylline, SSpecimen Type
SerumSpecimen Minimum Volume
Serum: 0.25 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Refrigerated (preferred) | 14 days |
| Frozen | 28 days | |
| Ambient | 72 hours |
Reject Due To
| Gross hemolysis | Reject |
Reference Values
Therapeutic:
Bronchodilation: 8.0-20.0 mcg/mL
Neonatal apnea (≤4 weeks old): 6.0-13.0 mcg/mL
Critical value: >20.0 mcg/mL
Day(s) Performed
Monday through Saturday
Report Available
Same day/1 to 2 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Test Classification
This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.CPT Code Information
80198
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| THEO | Theophylline, S | 4049-3 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 8661 | Theophylline, S | 4049-3 |
Forms
If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.