Test Directory

Vitamin B12

Brown Cap, Gel Clotted	Volume Range 0.2 ml Additive per Container None
Orange Cap	Volume Range 0.2 ml Additive per Container Lithium-heparin

Orange Cap - Paediatric	Volume Range 1 Additive per Container Lithium-heparin
White Cap - Paediatric	Additive per Container None

<5 years: 280 - 1400 ng/L

5 - 15 yrs: 200 - 1100 ng/L

>15 yrs: 180 - 2000 ng/L

RIE

51 Little France Crescent
Old Dalkeith Road
Edinburgh
EH16 4SA

Telephone (Biochemistry): 0131 242 6806

SJH

Howden Road West
Howden
Livingston
West Lothian
EH54 6PP

Telephone (Biochemistry): 01506 52 3160/1

WGH

Crewe Road South
Edinburgh
EH4 2XU

Telephone (Biochemistry): 0131 537 1910/1

4 days

1 mL sufficient for B12 + folate + ferritin.

Vitamin B12 retesting is not normally indicated within 12 weeks, and repeat requests in this time will typically be rejected.

For further information on the potential for biotin interference please click here.