Test Name
B12
Type SpecimenBlood - Red Top
LIS CodeB12
Availability7 days each week
Lab Section
Special Chemistry
Fluid TypeSerum
Critical Value
None
Summary Test NameVitamin B12
Special Handling InstructionsAvoid hemolysis
Specimen StabilitySerum: Stable for 2 hours at 20-25 °C, 2 days at 2-8 °C, 2 months at -20 °C.
Minimum Volume0.5 mL blood collected - Avoid Hemolysis
Test Turnaround Time Routines And Stats4 hours
Preferred VolumeFull 6 mL Red Top tube - Avoid Hemolysis
Reference Value211 – 946 pg/mL