Theophylline

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General Information

Lab Name
Theophylline
Lab Code
THEO
Epic Ordering
Theophylline Level
Description
Synonyms
Aminophylline

Interpretation

Method
Enzyme Multiplies Immunoassay technique (EMIT)
Reference Range
Units: mcg/mL
Female Male
AgeRangeAgeRange
0-10.0-20.0 0-10.0-20.0

Effective date: 10/28/2014

Ordering & Collection

Specimen Type
Blood
Collection
All Locations:
Preferred: 4 mL blood in  RED TOP tube
Also Acceptable: 4 mL blood in ORANGE RST, GOLD SST, LIME GREEN PST, GREEN or LAVENDER TOP tube
Handling Instructions
Quantity
requested: 1 mL serum/plasma
minimum: 0.5 mL serum/plasma

Processing

Processing
Refrigerate serum/plasma
Note: serum/plasma must be removed from SST or PST, if testing cannot be performed within 24 hours of collection. No addon testing to gel tubes over 24 hours old.
Hemolysis should be avoided.

Stability: Samples are stable 24 hours if refrigerated. Aliquoted samples received frozen are acceptable.

Performance

LIS Dept Code
Chemistry, Harborview (CHH)
Performing Location(s)
HMC Chemistry, Automated
206-520-4600

325 9th Ave, Rm # GWH-47, Seattle, WA 98104-2420

UW-NW Main Lab
206-668-1344

UW Medical Center – Northwest
1550 N 115th Street, A200
Seattle, WA 98133

Frequency
Daily, results same day
Available STAT?
Yes

Billing & Coding

CPT codes
80198
LOINC
4049-3
Interfaced Order Code
UOW1303
Interfaced Result Code
UOW1303