114371-8

PHENobarbital [Presence] in Urine by Mass Spectrometry

Active

Part Description

LP14729-5 PHENobarbital
Phenobarbital is an antiepileptic drug first introduced for clinical use in 1912. It is still used to treat most seizures except for absence seizure types. The CYP2C19 enzyme metabolizes phenobarbital to p-hydroxyphenobarbital which is then excreted as glucuronide. Phenobarbital induces secretion of liver enzymes which can impact the efficacy of drugs administered at the same time. The most common side effect of phenobarbital in adults with blood levels greater than 40 mg/L is sedation. Phenobarbital is an active metabolite of primidone and so must also be monitored in patients on primidone.(Tietz Fundamentals of Clinical Chemistry and Molecular Diagnostics, Seventh Edition; Carl A. Burtis; David E. Bruns) Source: Regenstrief LOINC

LOINC Names Get Info

Fully-Specified Name: PHENobarbital:PrThr:Pt:Urine:Ord:Mass Spec
Long Common Name: PHENobarbital [Presence] in Urine by Mass Spectrometry
Short Name: Phenobarb Ur Ql Mass Spec
Display Name: PHENobarbital Mass Spec Ql (U)
Consumer Name Alpha Get Info: PHENobarbital, Urine

Part Model Get Info

Component
PHENobarbital
LP14729-5
- Analyte
  PHENobarbital
  LP14729-5
  - Component Numerator
    PHENobarbital
    LP14729-5
    - Component Numerator Core
      PHENobarbital
      LP14729-5
    - Component Numerator Core Suffix
      NULL
  - Component Denominator
    NULL
    - Component Denominator Core
      NULL
    - Component Denominator Core Suffix
      NULL
- Challenge
  NULL
- Adjustment
  NULL
- Count
  NULL
Property
PrThr
LP217195-9
Time
Pt
LP6960-1
- Time Core
  Pt
  LP6960-1
- Time Modifier
  NULL
System
Urine
LP7681-2
- System Core
  Urine
  LP7681-2
- Super System
  NULL
Scale
Ord
LP7751-3
Method
Mass Spec
LP451714-2

Example Answer List: LL744-4

Source: Regenstrief Institute

Answer	Code	Score	Answer ID
Detected			LA11882-0
Not detected			LA11883-8

Basic Attributes

Class: DRUG/TOX
Type: Laboratory
First Released: Version 2.83
Last Updated: Version 2.83 (ADD)
Order vs. Observation: Both

Member of these Groups Get Info

LOINC Group	Group Name
LG52881-6	PHENobarbital\|PrThr\|Pt\|ANYUrine

LOINC Terminology Service (API) using HL7^® FHIR^® Get Info

CodeSystem lookup: https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=114371-8

LOINC Copyright

Copyright © Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.