Test Catalog

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Test ID: POX    
Fatty Acid Profile, Peroxisomal (C22-C26), Serum

Testing Algorithm Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

See Newborn Screen Follow-up for X-Linked Adrenoleukodystrophy in Special Instructions.

 

For more information, see Newborn Screening Act Sheet X-linked Adrenoleukodystrophy: Increased Very Long Chain Fatty Acids in Special Instructions.

Specimen Type Describes the specimen type validated for testing

Serum

Specimen Required Defines the optimal specimen required to perform the test and the preferred volume to complete testing

Collection Container/Tube:

Preferred: Red top

Acceptable: Serum gel

Submission Container/Tube: Plastic vial

Specimen Volume: 0.5 mL

Collection Instructions:

1. Fasting-overnight (12-14 hours).

2. Patient must not consume any alcohol for 24 hours before the specimen is drawn.

3. Spin down within 45 minutes of draw.

Additional Information:

1. Patient's age and gender is required.       

2. Include information regarding treatment, family history, and tentative diagnosis.

Special Instructions Library of PDFs including pertinent information and forms related to the test

Forms

If not ordering electronically, complete, print, and send an Inborn Errors of Metabolism Test Request (T798) with the specimen. 

Specimen Minimum Volume Defines the amount of sample necessary to provide a clinically relevant result as determined by the Testing Laboratory

0.15 mL

Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected

Hemolysis

Mild OK; Gross OK

Lipemia

Mild reject; Gross reject

Icterus

Mild OK; Gross OK

Other

NA

Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the performing laboratory, alternate acceptable temperatures are also included

Specimen TypeTemperatureTime
SerumFrozen (preferred)92 days
 Refrigerated 15 days