Acylcarnitine profile, quantitative, plasma

Alphabetical Test listing

Acylcarnitine profile, quantitative, plasma-994

Test name:

Test number:

994

Excellian order number:

LAB994

Abbreviation:

MSO

Useful for:

The diagnosis and monitoring of inherited disorders of fatty acid oxidation and organic acidurias
May be used as a follow-up test to some abnormal newborn screen results

Specimen type:

Sodium (Na) heparin plasma

Collection container:

Dk green Sodium heparin (Na hep), no gel

Volume:

0.5 mL

Minimum volume:

0.1 mL
Submission of the minimum volume does not allow for repeat testing

Processing instructions:

Spin
Transfer plasma to a Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp)
Freeze

Transport container:

Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp)

Transport and stability:

Frozen (strict) - 2.7 years

Freeze/thaw cycles - stable x3

Reason for rejection:

Specimen thawed or not frozen
Gross hemolysis
Specimen type other than frozen plasma

Performing lab:

LabCorp Burlington (070228): R-NX

Days set up:

Su, Tu, Th

TAT:

7 days

Method:

Flow injection/tandem mass spectrometry

Reference ranges:

An interpretive report will be provided

Cautions:

False-negative results can occur with acylcarnitine profiling, especially when the patient is carnitine deficient, is affected with a milder variant of a disorder, or when clinical condition or dietary supplementation causes secondary changes to the profile. Results of acylcarnitine profiling should be interpreted in the context of clinical presentation as well as other laboratory tests, which may include urine organic acid analysis and molecular testing.

CPT codes:

82017

LOINC code:

Result 30551-6

Date created:

05/22/2019

Revised date:

04/07/2022

Review date:

11/24/2023