Amino Acids Quantitative, Urine (Referred Out) - Saskatoon
Discipline
Biochemistry
Overview
Description
Test ordering requirements
Forms required
Alias
- Aminoaciduria
- Hypophosphatasia
Specimen Information
Specimen types accepted
- Random urine
Specimen collection container
- Preferred collection container: Sterile Wide Mouth Screw Cap Container (Pink Top)
Required volume
- Optimal volume: 5 mL urine
- Minimum/ pediatric volume: 1 mL urine
Transport and stability
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Send to SPH on an ice pack
- Freeze immediately upon receipt in the lab
- Ship specimen frozen to referral laboratory
Rejection criteria
- If specimen thaws, it is unsuitable for analysis
- Specimens received where the proper collection protocols were not followed
- 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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Purpose - Quantitatively measures amino acid levels
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Interpretation - Detects aminoacidopathies
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Results interpretation - Should be correlated with clinical and other laboratory findings
Performance
Methodology
- Available upon request
Days/times performed
| Availability |
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| Testing site |
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Maximum laboratory time
- 7 day turnaround time by referral laboratory
Other information
Additional comments
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Aids in diagnosis of aminoacidopathies; used for therapeutic monitoring for PKC, MSUD, tyrosinemia, etc.; also useful for the evaluation of renal tubular function.
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Indications for testing include clinical conditions such as failure to thrive, recurrent vomiting, lethargy, kidney stones.
Last Updated: October 18, 2024