<s>[INST] Hi, I have a Parietal CellAB test result of 12.6. I have pernicious anemia and have been giving myself monthly B12 shots. What does this result mean? Do I still have to give myself shots. The doctor s office never responded to the test results. Thanks. Barbara [/INST] Hello, THX to contact us. If I am your treating doctor I would like to advice you that the result of the test should be regarded in terms of reference values. Each test which we carried out has its own reference values. Until you do not mention reference value it will be difficult to tell you about the result of the test. But if your report suggest a low B12 than you have to continue with the B12 shots. If you have anything else to ask please contact me. Than. Chat Doctor </s>