Methylmalonic Acid, Urine Quantitative
Specimen Collection Requirements
Urine in a sterile collection cup or 24-hour collection container with no preservative
Aliquot from a well-mixed 24-hour or random urine collection. The most important aspect of specimen preservation is adequate refrigeration during collection, storage and transport. Record the total volume and collection time interval on the transport tube and test request form.
Ambient: Unacceptable; Refrigerated: 1 week; Frozen: 1 month
Quantitative High Performance Liquid Chromatography-Tandem Mass Spectrometry
0.0-3.6 mmol/mol CRT
Creatinine: By report.
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