Methylmalonic Acid, Urine (Referred Out) - Saskatoon
Discipline
Biochemistry
Overview
Description
Test ordering requirements
Forms required
- Requisitions 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
- Methylmalonic aciduria
- MMA
- Methylmalonic acidemia
Specimen Information
Specimen types accepted
- Random Urine
Specimen collection container
- Preferred collection container: Sterile Wide Mouth Screw Cap Container (Pink top)
Collection procedure
- Random collection
Required volume
- Optimal volume: 10 mL urine
- Minimum volume: 3 mL urine
(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
- Send to SPH on an ice pack
- Freeze immediately upon receipt in the lab.
- Ship 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
- Family History
- Relevant Recent Medication History - A recent medication list is relevant for clinical interpretation of results
Clinical interpretation
- Result interpretation should be correlated with clinical and other laboratory findings.
Performance
Methodology
- Gas Chromatography / Mass Spectrophotometry
Days/times performed
Availability |
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Testing site |
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Maximum laboratory time
- 10 day turnaround time by referral laboratory
Other information
Additional Comments
-
Methylmalonic Acid is processed as part of the Organic Acids Qualitative - Urine Screen
Last Updated: October 21, 2024