Test Catalog

Test ID: B12    
Vitamin B12 Assay, Serum

Useful For Suggests clinical disorders or settings where the test may be helpful

Investigation of macrocytic anemia


Workup of deficiencies seen in megaloblastic anemias

Testing Algorithm Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

See Vitamin B12 Deficiency Evaluation in Special Instructions.

Special Instructions Library of PDFs including pertinent information and forms related to the test

Method Name A short description of the method used to perform the test

Immunoenzymatic Assay

NY State Available Indicates the status of NY State approval and if the test is orderable for NY State clients.


Reporting Name Lists a shorter or abbreviated version of the Published Name for a test

Vitamin B12 Assay, S

Aliases Lists additional common names for a test, as an aid in searching

B(12) Assay
B(12) Assay, B12 + Folate
B12 Assay
B12, Serum
Cobalamin Cyanocobalamin
Cobalamin Deficiency
Vitamin B-12 Assay, Serum
Vitamin B12 and Folate, Serum
Vitamin B12, Serum
B(12) Assay ORDER FB12
B(12) Assay, B12 + Folate ORDER FB12
B12 Assay ORDER B12
Cobalamin ORDER B12
Cyanocobalamin ORDER B12
Vitamin B12 and Folate, Serum ORDER FB12