Specimen Requirements
Title
METHYLMALONIC ACID, URINE
Specimen Requirement
Collect random urine. Send 5.0 mL (2.0 mL minimum) urine in a SCREW-CAPPED plastic urine container.
Methodology
Stability
Room Temp 72 hrs; Refrigerated 7 days; Frozen 14 days
Reference Range
By Report*
Turnaround
7-10 days -- Performed Wednesday
Clinical Use
Diagnosis of B12 deficiency; monitoring patients with methylmalonic aciduria.
Test Code
UMMAW