Turnaround times
The quoted turnaround time is from sample receipt in the laboratory, to results authorisation in the Laboratory Information Management system. The times do not include transport of specimen to the laboratory or the administrative process to print and post/email reports. Service users must allow for transport and reporting time when ordering tests.
Clinical background:
Evaluating children with signs and symptoms of methylmalonic acidemia
Additional confirmatory testing must be performed.
Evaluating individuals with signs and symptoms associated with a variety of causes of cobalamin (vitamin B12) deficiency
Several studies have suggested that the determination of serum or urinary methylmalonic acid could be a more reliable marker of cobalamin deficiency than direct cobalamin determination.
Specimen container paediatric:
EDTA plasma
Lithium Heparin plasma
SST serum
Specimen container adult:
EDTA plasma
Lithium Heparin plasma
SST serum
Minimum volume paediatric:
0.5 mL
Minimum volume adult:
0.5 mL