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Orderable Name MMAS Methylmalonic Acid, Quantitative, Serum

Additional Codes

CNE Order Code: MMA

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

Specimen Type

Serum


Specimen Required


Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume:1.5 mL

Collection Instructions: Centrifuge and aliquot serum into a plastic vial.


Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 48 days
  Ambient  48 days
  Frozen  48 days

Reference Values

≤0.40 nmol/mL

Day(s) Performed

Monday through Friday

CPT Code Information

83921

Report Available

3 to 5 days

Reject Due To

Gross hemolysis OK
Gross lipemia OK
Gross icterus OK

Method Name

Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)

Forms

If not ordering electronically, complete, print, and send 1 of the following forms with the specimen:

-General Request (T239)

-Benign Hematology Test Request (T755)

-Biochemical Genetics Test Request (T798)