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METHYLMALONIC ACID, URINE QUANTITATIVE

Mnemonic

MMA U

Synonym

MMA

Specimen Collection Requirements

Collect

Urine in a sterile collection cup or 24-hour collection container with no preservative

Handling

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.

Preferred Volume

4.0 mL

Minimum Volume

1.0 mL

Transport

Frozen

Stability

Ambient: Unacceptable; Refrigerated: 4 days; Frozen: 1 month

Testing Information

Performed

7 days/week

Reported

2-5 days

Method

Quantitative High Performance Liquid Chromatography-Tandem Mass Spectrometry

Referral Lab

ARUP (83918)

Reference Values

Reference Values

0.0-3.6 mmol/mol CRT
Creatinine: By report.

CPT Codes

83921

Last Updated: Thursday, September 28, 2017 08:29:08 AM


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