Amino Acids Quantitative, Blood (Referred Out)- Saskatoon
Discipline
Biochemistry
Overview
Description
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Fasting specimens preferred for adults
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For infants and children, draw specimen prior to feeding or 2-3 hours after a meal.
Test ordering requirements
Forms required
- Miscellaneous Specimen Requisition Form #101878
- or SHR Laboratory Medicine Community Laboratory Requisition Form #101064
- or Acute Care Phlebotomy Requisition Form #101062
Alias
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Aminoacidopathies
Specimen Information
Specimen types accepted
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Plasma
- Fasting specimens preferred
Specimen collection container
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Preferred collection container: Lavender (EDTA) 4.0 mL
- Alternative collection container: Dark Green (Sodium Heparin) 4.0 mL
- Alternative collection container: Dark Green (Lithium Heparin) 4.0 mL
Required volume
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Optimal volume: 4 mL whole blood
- Minimum/pediatric volume: 1 mL whole blood
Transport and stability
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Separate plasma from cells as soon as possible or within 2 hours of collection
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Freeze plasma immediately upon receipt in laboratory
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Ship plasma frozen to referral laboratory
Rejection criteria
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If specimen thaws; it is unsuitable for analysis
- Grossly hemolyzed specimens
- Specimens received where the proper collection protocols were not followed
- LSM-933 Pathology and Laboratory Medicine Acceptance and Rejection Criteria
Testing Information
Relevant clinical history
Relevant clinical history
- Family history
Relevant recent medication history
- A recent medication list is relevant for clinical interpretation of results
- Pregbalin and gabapentin may cause falsely elevated arginine levels
Clinical interpretation
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Result interpretation should be correlated with clinical and other laboratory findings
Performance
Methodology
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Available upon request
Days/times performed
| Availability |
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| Testing site |
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Maximum laboratory time
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7 day turnaround time by referral laboratory
Other information
Additional comments
- To diagnose and monitor aminoacidopathies
Last Updated: October 18, 2024