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Test Code LAB10118 VERY-LONG CHAIN ACYL-COA DEHYDROGENASE (VLCAD) ACTIVITY USING LC-MSMS

Important Note

Please note this assay is now back online. As of now, delays will be expected as we work through our backlog. 

If you would like to be added to our email list for any updates or have questions, please send an email to LabClientServices@childrenscolorado.org or call 720-777-6711 opt. 3. 

Thank you for your understanding and patience. 

Aliases

VLCAD
VLCAD Activity

Performing Section

Biochemical Genetics

Purpose/Principle

Clinical teams can use this test to help clarify whether a patient has VLCAD deficiency often as follow up to abnormal newborn screening results or inconclusive molecular genetic testing.

Special Collection Notes

Mix well after collection

Specimen Type

Whole Blood:
Purple Top Tube-EDTA

Specimen Volume

Preferred: 3.0 mL
Minimum: 1.0 mL

Processing Instructions

DO NOT CENTRIFUGE. Store refrigerated and send on wet ice via courier OR ship overnighted on cold pack (See Resources for more shipping info).

Temperature

Refrigerated

TAT

Routine: 10 days
STAT: 72 hours

Test Components

VLCAD Activity

CPT

0257U

Test/Batch Schedule

Run once a week on Thursday (day may vary)

Reference Range

Normal VLCAD Activity Reference Range

1.35-2.95 nmol/min/mg protein

 

Carrier VLCAD Activity Reference Range

1.03-1.49 nmol/min/mg protein

 

Affected VLCAD Activity Reference Range

0.25-0.86 nmol/min/mg protein

Sample Stability

Refrigerated: 48 hours

Additional Notes

Any sample that is received frozen or ambient will be rejected.