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ID:227 Vitamin B12 (B12)
Search Links: General Info : Protocols : Patient Info

DescriptionVitamin B12 is a water soluble vitamin with a key role in the normal functioning of the brain and nervous system, and for the formation of blood. PLEASE NOTE: TEST CAN ONLY BE ADDED TO A SAMPLE WITHIN 8 HOURS OF COLLECTION
Additional Info**IMPORTANT NOTICE!** As of 12th September 2011 the "request intervention" system is being implemented on all haematinics tests (B12, folate, ferritin). This software program applies user-specified critieria to determine if the results of previous requests for a given patient are still valid. If any of these minimum re-test intervals is exceeded then the request is deemed inappropriate and the requested test(s) will not be performed. An explanatory comment will be included on the report stating "inappropriate request. Minimum re-test intervals on Pathology Website", together with information about the appropriate re-test interval. The following acceptable retest intervals will be used: B12 >56 days, Folate >21days, Ferritin >20 days. In cases where the requester feels that there is a genuine clinical need for a result despite the request being rejected by the system, please contact the duty officer who is able to override request intervention and allow the tests to be processed.
Concurrent Testsna
Dietary Requirementsna


Ref. Range (Male)211 - 911
Ref. Range (Female)211 - 911
Ref. Range (Paed)
Ref. Range Notes

IP Acute TATRefer to Website
IP Routine TATRefer to Website
GP Acute TAT- Contact Laboratory
GP Routine TATRefer to Website
Turnround CommentMinimum re-test interval = 14 days
Originally edited by : AK. Last edited on 04/12/2015 16:08:59. Published By Sylvia Bennett on 04/12/2014 16:08:59.