1. Presented by Eric A. Gehrie, MD and prepared by Lorraine N. Blagg, MA, MLS(ASCP)SBB

Clinical Vignette

An adult is admitted to an outside hospital complaining of fatigue and weakness. Hemoglobin upon admission to that hospital was 5.0 g/dl and a DAT was positive with both anti-IgG and anti-C3. The patient has never been transfused and has had no prior medical problems.

Question:
Given these results, what is the possible clinical condition?