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Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog
METHYLMALONIC ACID, GC/MS/MS, URINE |
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ORDERING INFORMATION: |
Geisinger Epic Procedure Code: LAB2677 Geisinger Epic ID: 21476 | |
SPECIMEN COLLECTION |
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Specimen type: |
Random urine | |
Preferred collection container: |
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Specimen required: |
2 mL random urine in plastic, leakproof container. | |
Special notes: |
Collect without preservatives. | |
| SPECIMEN PROCESSING |
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Specimen processing instructions: |
Do not add preservative. | |
Transport temperature: |
Frozen (preferred) or refrigerated. | |
Specimen stability: |
Room Temperature: Unacceptable. Refrigerated: 12 days. Frozen: 30 days. | |
Rejection criteria: |
Specimens transported at room temperature. Specimen containing preservative. | |
TEST DETAILS |
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Reference interval: |
Accompanies report. | |
Additional information: |
Turnaround time: 5 days. | |
CPT code(s): |
83921, 82570 | |
| Note: The billing party has sole responsibility for CPT coding. Any questions regarding coding should be directed to the payer being billed. The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only. | ||
Test includes: |
Methylmalonic Acid, Urine. | |
Methodology: |
Gas Chromatography/Mass Spectrometry (GC/MS) |
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Synonyms: |
METHAC, MMA METHYLMALONIC ACID, URINE Quest test code 91032
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Clinical significance: |
Methylmalonic Acid (MMA) is useful to diagnose and monitor Vitamin B12 (cobalamin) deficiency, and to diagnose and monitor patients with methylmalonic acidemia. | |