Glutarylcarnitine Quantitative, Urine

2001510
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Patient History For Biochemical Genetic Testing

Ordering Recommendation

Diagnostic evaluation for glutaric acidemia type I. Use in conjunction with urine organic acids and plasma acylcarnitines.

Mnemonic

C5DC URINE

Methodology

Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)

Performed

Thurs

Reported

4-11 days

New York DOH Approval Status

This test is New York DOH approved.

Specimen Required

Patient Preparation
Collect

Random urine. Avoid dilute urine when possible.

Specimen Preparation

Transfer 2.5 mL urine to an ARUP Standard Transport Tube and freeze immediately. (Min: 0.5 mL)

Storage/Transport Temperature

CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.

Unacceptable Conditions

Specimens that have exposed to more than one freeze/thaw cycle.

Remarks

Clinical information is needed for appropriate interpretation. Additional required information includes age, gender, diet (e.g., TPN therapy), drug therapy, and family history. Biochemical Genetics Patient History Form is available on the ARUP Web site at https://www.aruplab.com/patienthistory or by contacting ARUP Client Services.

Stability

Ambient: Unacceptable; Refrigerated: 24 hours; Frozen: 1 month

Reference Interval

Reports include age appropriate reference interval.

Available Separately
 Components
 Reference Interval
No Glutarylcarnitine, Urine 0.0 - 0.5 mmol/mol creatinine

Interpretive Data

If patient is receiving carnitine supplements, results may not be informative.  Clinical correlation is recommended for interpretation of the result.

This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.

Compliance Category

Laboratory Developed Test (LDT)

Note

Hotline History

View Hotline History

 

Hotline History

Date of Change
Test Name Change
Methodology
Performance/Reported Schedule
Specimen Requirements
Reference Interval
Interpretive Data
Note
CPT Code
Component Change
Other Interface Change
New Test
Inactive
02/18/2020
X
N/A

CPT Codes

82017

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Components

Component Test Code* Component Chart Name LOINC
2001511 Glutarylcarnitine, Urine 54279-5
2001513 Creatinine, Urine 2161-8
2002778 Glutarylcarnitine, Urine Interpretation 48767-8
* 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

  • Acylcarnitines, urine
  • C5-DC Acylcarnitine
  • GA 1
  • GA-1
  • GA1
  • GCDH Def
  • Glutaric Aciduria 1
  • Glutaric Aciduria Type I
  • Glutaryl CoA Dehydrogenase Deficiency
Glutarylcarnitine Quantitative, Urine