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HelpTest Code MAQNM Methylmalonic Acid, Quantitative, Serum
Additional Codes
| Mayo | MMAS |
| Epic ID | LAB835 |
Specimen Type
SerumSpecimen Required
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume:1.5 mL serum
Collection Instructions: Centrifuge and aliquot serum into a plastic vial.
Specimen Minimum Volume
Serum: 0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Refrigerated (preferred) | 48 days |
| Ambient | 48 days | |
| Frozen | 48 days |
UPH Waterloo Region Lab Test Catalog
Note:
Transport refrigerated.
Reject Due To
| Gross hemolysis | OK |
| Gross lipemia | OK |
| Gross icterus | OK |
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Method Name
Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)
Useful For
Evaluating children with signs and symptoms of methylmalonic acidemia using serum specimens
Evaluating individuals with signs and symptoms associated with a variety of causes of vitamin B12 (cobalamin) deficiency
Day(s) Performed
Monday through Friday
Report Available
3 to 5 daysReference Values
≤0.40 nmol/mL
CPT Code Information
83921