Fatty Acid Profile Essential, Blood (Referred Out) - Saskatoon
Discipline
Biochemistry
Overview
Description
- Fasting overnight (12-14 hours)
- Patient must not consume any alcohol for 24 hours before the specimen is collected
- Fasting Acid Profiles ordered via the SCM ordering system (RUH) require the Acute Care Phlebotomy Requisition Form #101062
Test ordering requirements
Forms required - Acute Care Phlebotomy Requisition Form #101062 (RUH only)
Alias
- Essential fatty acid profile
Specimen Information
Specimen types accepted
- Serum
Specimen collection container
- Preferred collection container: Red (non-gel)
- Alternative collection container: Gold (gel)
Required volume
- Optimal volume: Full 4.5 mL collection tube
- Minimum volume: 0.15 mL
(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
- 92 days frozen
- 72 hours refrigerated
Rejection criteria
- Specimens received where the proper collection protocols were not followed
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Gross lipemia
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Pathology and Laboratory Medicine Acceptance and Rejection Criteria
Testing Information
Clinical interpretation
- Evaluating the nutritional intake and intestinal absorption of essential fatty acids
- Identifying deficiency of essential and other nutritionally beneficial fatty acids
- Monitoring treatment of patients with essential fatty acid deficiencies who are receiving linoleic acid (C18:2w6) and alpha-linolenic acid (C18:3w3)
Performance
Days/times performed
Availability |
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Testing site |
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Maximum laboratory time
- One week turnaround time by testing laboratory
Last Updated: October 9, 2024