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Test Code LAB9995 Methylmalonic Acid, Liquid Chromatography

Aliases

MMA LC

Performing Section

Biochemical Genetics

Specimen Type

Serum or Plasma:
Green Top -Lithium Heparin (Preferred)
Dark Green Top – Sodium Heparin
Red Top -Plain
Gold Top -SST

Specimen Volume

Preferred: 3.0 mL
Minimum: 0.6mL

Processing Instructions

Green or Gold top-CENTRIFUGE per procedure / Red Top – Clot 60 minutes in upright position
Pipette off plasma or serum into pour off tube
Attach original tube to pour off tube with rubber band
Store and ship sample Frozen on dry ice.

TAT

7 days

CPT

83921

Temperature

Frozen (dry ice)

Sample Stability

Frozen: 8 Weeks

Test/Batch Schedule

Tue and Thur

Test Components

Methylmalonic Acid

Reference Range

0-1 year: ≤0.6 mcmol/L
1 year and up: ≤0.4 mcmol/L