Biomarkers · Chemical
Phenytoin and Phenobarbital
- LOINC codes
- 3948-7, 3968-5
- Tests that measure Phenytoin and Phenobarbital
- Quest Diagnostics 1
Ranges
Each lab publishes a reference range for the population groups it tests, usually the middle 95% of results. These intervals describe that population, not an optimal or healthy target. How ranges differ
Quest Diagnostics, Anticonvulsant Panel 1 7311
| Population | Interval |
|---|---|
| Phenytoin | 10.0-20.0 mg/L |
| Phenobarbital | 15.0-40.0 mg/L |
Tests
Check the catalog code, specimen, method and preparation for every test that measures Phenytoin and Phenobarbital. Select up to five tests to compare them side by side.
Quest Diagnostics 1 test
Single-analyte tests
Anticonvulsant Panel 1 7311
Serum · Fasting not stated
Quest Diagnostics catalog pageMethod and collection
- Method
- Immunoassay (IA)
- Preparation
- Collect just prior to next dose. For patients receiving fosphenytoin therapy, collect as a trough at least 2 hours after IV infusion or at least 4 hours after IM injection.
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Quest Diagnostics test catalog
1 test: codes, specimens, methods, preparation and reference intervals.
Regenstrief Institute codes that identify the same result across labs.
Search ClinicalTrials.gov for Phenytoin and Phenobarbital
Registered studies that measure Phenytoin and Phenobarbital, on the U.S. National Library of Medicine registry.
Verify these ranges and sources
We compile this page from named laboratory catalogs, guidelines and studies. Labs calculate reference intervals from the people they test, for one assay method and one population group, so an interval describes that population rather than an optimal target.
Interpret your own results with a licensed clinician, or track your lab history and health goals in Aumnivida.
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