Learning Objectives:

• Define diagnostic error using established frameworks (e.g., Institute of Medicine) and distinguish it from related concepts such as missed, delayed, or incorrect diagnoses.
• Identify how transitions of care and patient communication contribute to diagnostic error

1. Understand the nuances of testing for B12 deficiency: need for multiple assays, meaning of greater than assay results
2.  Entities mimicked by B12 deficiency (e.g. dysplasia, TTP)
3.  Use of PO B12 to manage pernicious anemia