Very Long Chain Fatty Acids, with Phytanic Acid and Pristanic Acid, Serum (Referred Out) - Saskatoon
Discipline
Biochemistry
Overview
Description
Ordering recommendation
- Requires a 12-14 hour fast, or draw just prior to next feed for newborns
- Avoid any alcohol 24 hours prior to collection
Test ordering requirements
Forms required
- Requisition must have specific test indicated
- Miscellaneous Specimen Requisition Form #101878 or SHR Laboratory Medicine Community Laboratory Requisition Form #101064 or Acute Care Phlebotomy Requisition Form #101062
Alias
- Long chain fatty acids
- Fatty Acids Very Long CH
- Phytanic and Pristanic acid
Specimen Information
Specimen types accepted
- Serum
Specimen collection container
- Preferred collection container: Red (no additive) 6.0mL
Collection procedure
- Fasting specimen is required for most accurate results
- Send to Laboratory immediately
- Aliquot serum within 45 minutes of collection
- Freeze aliquot and send frozen
Required volume
- Optimal volume: 1.5 mL full collection tube
- Minimum/pediatric volume: 0.15 mL serum
(Submitting the minimum volume makes it impossible to repeat the test or perform confirmatory/reflex testing. In some situations, a minimum volume may require a second collection.)
Transport and stability
- Centrifuge and aliquot serum within 45 minutes of collection
- Store and send frozen
Rejection criteria
- Specimens received where the proper collection protocols were not followed
- Pathology and Laboratory Medicine Acceptance and Rejection Criteria
Testing Information
Relevant clinical history
- Family history
- Must include diagnosis and/or patient symptoms on the requisition
Relevant recent medication history
- A recent medication list is relevant for clinical interpretation of results
Performance
Days/times performed
Availability |
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Testing site |
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Maximum laboratory time
Results reporting
- 3-4 week turn around time by testing laboratory
Last Updated: October 18, 2024