Last Modified:
12/17/2010 6:37:23 AM
Specimen Requirements:
3.0 mL Serum from a Red Top Tube in a Plastic Vial
Minimum Volume:
2.0 mL
Transport & Storage: Temperature/Stability:
30 days Ambient
30 days Refrigerated
30 days Frozen (Preferred)
Reference Range:
< 0.40 umol/L
Methodology:
GC/MS
Clinical Significance:
Methylmalonic acid is a very sensitive indicator of Vitamin B12 deficiency at the tissue level. Mildly elevated levels (0.4-1.0 umol/L) are seen in patients with decreased renal function. Extremely high levels (>20 umol/L) are indicative of methylmalonic acidemia, an inborn error of metabolism disorder
Custom Panel:
No
PRODUCTION SCHEDULE
Turn Around Time:
3 to 6 days
Days Performed:
Tuesday, Wednesday, Thursday, Friday, Saturday
Sites Performed:
Quest Valencia (SLI)
PHL Test Code:
METH
Send Out Test Code:
3496
Alternate Test Names:
MMA
CPT Coding:
83921
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