Ordering Recommendation
Optimize drug therapy and monitor patient adherence.
Mnemonic
PHNO
Methodology
Immunoassay
Performed
Sun-Sat
Reported
Within 24 hours
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect
Plain red. Also acceptable: Green (sodium heparin).
Specimen Preparation
Allow specimen to clot completely at room temperature. Separate serum or plasma from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.5 mL)
Storage/Transport Temperature
Refrigerated.
Unacceptable Conditions
Separator tubes or gels, lavender (EDTA), or gray (sodium fluoride/potassium oxalate). Hemolyzed specimens.
Remarks
Stability
After separation from cells: Ambient: 2 days; Refrigerated: 6 months; Frozen: 6 months
Reference Interval
0-2 months: 15.0-30.0 µg/mL
Toxic: 40.1 µg/mL or greater
3 months and older: 15.0-40.0 µg/mL
Toxic: 50.1 µg/mL or greater
Interpretive Data
Compliance Category
FDA
Note
Hotline History
N/A
CPT Codes
80184
Components
Component Test Code* | Component Chart Name | LOINC |
---|---|---|
0090230 | Phenobarbital | 3948-7 |
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
- Luminal
Phenobarbital