Vitamin B12

Sample type: Serum

Test name: Vitamin B12 a.k.a. cobalamin, B12

Condition / Indication: Determination of B12 level. DO NOT send on patients on B12 therapy.

Special precautions & notes: None.

Reference range: Note new reference ranges from 14/11/22: <100ng/L: likely deficiency, commence treatment; 100-180ng/L: possible deficiency. If clinical findings suggest deficiency consider a trial of therapy and assessment of response. Suggest consult guidelines in Remedy; 180-250ng/L: may still indicate deficiency. If strong clinical suspicion suggest discussion with a haematologist; B12 >250ng/L: vitamin B12 deficiency not likely to be present.

Container: Serum (Gold top)

Ideal volume (mL): 5 mL

Discipline: Clinical Biochemistry

Section: Automated Laboratory

Turnaround time: 3 days