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GTR Home > Tests > very long chain fatty acids (cultured cells)

How to order

How To Order

Laboratory's Test Page



How To Order


2mm punch sterile skin biopsy in sterile tissue culture media or two T-25 flasks of fibroblasts
Order URL Help: http://www.genetics.kennedykrieger.org/forms

Informed Consent Required Help: No

Specimen Source

  • Amniocytes
  • Amniotic fluid
  • Cell culture
  • Chorionic villi
  • Fibroblasts

Specimen requirements: http://www.genetics.kennedykrieger.org/forms

Test Codes


Not provided

Test Orderable By

  • Genetic Counselor
  • Health Care Provider
  • Licensed Physician
  • Nurse Practitioner
  • Physician Assistant
  • Registered Nurse

Testing Strategy


clinical history of X-linked adrenoleukodystrophy, or peroxisomal biogenesis defect, or D-bifunctional enzyme deficiency, or acyl-CoA-oxidase deficiency

Test services

  • Clinical Testing/Confirmation of Mutations Identified Previously
  • Custom Prenatal Testing

Ordering Requirements

Genetic Counseling Required Pre-test Help
Genetic Counseling Required Post-test Help

Contact Policy


  • Laboratory can only accept contact from health care providers. Patients/families are encouraged to discuss genetic testing options with their health care provider.

Practice guidelines

  • ACMG ACT, 2023
    American College of Medical Genetics and Genomics, Newborn Screening ACT Sheet, Elevated lysophosphatidylcholines, X-Linked Adrenoleukodystrophy (X-ALD), 2023
  • ACMG Algorithm, 2023
    ACMG Algorithm, X-ALD: Elevated lysophosphatidylcholines C24:0, C26:0, 2023
  • AAP, 2021
    Leukodystrophies in Children: Diagnosis, Care, and Treatment, Pediatrics (2021) 148 (3): e2021053126.
  • EuroGentest, 2011
    Clinical utility gene card for: adrenoleukodystrophy.

IMPORTANT NOTE: NIH does not independently verify information submitted to the GTR; it relies on submitters to provide information that is accurate and not misleading. NIH makes no endorsements of tests or laboratories listed in the GTR. GTR is not a substitute for medical advice. Patients and consumers with specific questions about a genetic test should contact a health care provider or a genetics professional.