Effective 1/20/2014, Vanderbilt Laboratory is changing the acceptable tube type for Vitamin B12 Testing to Red Top tubes only. This change is necessary due to an artifact identified in the green/mint top tubes that caused occasional spuriously high results. To help insure the most accurate laboratory testing for our patients, green/mint top tubes will no longer be an acceptable specimen for B12 testing. Please contact Lab Client Services at 5-LABS (875-5227) for additional information or assistance.
CLICK HERE TO VIEW/PRINT A VITAMIN B12 TEST INFORMATION SHEET