Methylmalonic acid, serum or plasma
Methylmalonic acid, serum or plasma-13583
Methylmalonic acid, serum or plasma
13583
LAB13583
MMA
Serum methylmalonic acid (MMA) measurement is used to evaluate individuals with signs and symptoms associated with vitamin B12 deficiency or congenital methylmalonic academia.
Serum
2.0 mL
0.6 mL
Submission of the minimum volume does not allow for repeat testing
Submission of the minimum volume does not allow for repeat testing
Immediately following collection, thoroughly mix sample by gently inverting 5 times
- Allow sample to clot for a minimum of 30 minutes
- Spin within one (1) hour of sample collection
Gold serum separator (SST) tube
Heparin plasma
Dk green:
Immediately following collection, mix sample thoroughly by gently inverting 8 - 10, times to prevent clotting
Red:
- Allow sample to clot
- Spin within one (1) hours of sample collection
- Transfer serum to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as serum
Dk green:
- Spin within one (1) hours of sample collection
- Transfer plasma to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as the appropriate plasma type
Refrigerated (preferred) - 14 days
Ambient - 14 days
Frozen - 19 days
Freeze/thaw cycles - stable x 3
- Plasma from a light blue-top (citrate)
- Plasma from a yellow-top tube (ACD)
LabCorp Burlington (706961): R-LC
Mo - Fr
3 - 7 days
Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
0 - 378 nmol/L
83921
Result UNLOINC
04/10/2019
12/31/2023
12/31/2023