Investigation Name:Vitamin B12 (Active Form)

Alias or Abbreviation:B12

Pathology Laboratory:Clinical Chemistry Ext 88266

Requestable Seperately?No

Part of Profile:VIT1 VIT2

Tests in Profile:B12 folate ferritin

E-Requesting Tab:BASIC-Blds

Units:pmol/L

Minimum Sample Volume:Adult: 1 mL Infant: 0.5 mL

Expected Turnaround Time:Inpatients:4 hrs. Outpatients:1 day (from receipt)

Test Code:B12

Sample Type:

Maximum Add on Time:3 days

Complex Reference Range:From 13/03/23 the lab will measure active vitamin B12 (holotranscobalamin) instead of total B12 Deficient: < 25 Indeterminate: 25 - 50 Normal: > 50

Collection Conditions / Other Information:Minimal retest interval of 3 months. Please note: this test is not currently within our scope of UKAS accreditation. The assay has undergone verification and is performed on the Abbott Alinity platform by the same competent staff that perform all other routine analysis.

Referred to Another Laboratory?No