Red top or SST tube
1 mL serum
0.5 mL serum
Collect specimen in a red top or SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate (preferred) or freeze.
Collect specimen in a red top or SST tube.
Monday - Friday
2 - 5 days
Competitive Binding Immunoenzymatic Assay
Negative (reported as positive, negative, or indeterminate).
Positive in 50% of persons with pernicious anemia.
This test should not be ordered on patients who have received a radioisotope (either diagnostically or therapeutically) or a vitamin B(12) injection within the previous week.
Test sent to Mayo Medical Laboratories.
31444-3
86340
20430