Part 1 of a 2-part series. In the first episode on Diabetes Mellitus, we’ll compare and contrast the pathogenesis and presentation of Types 1 and 2 DM. We’ll also talk about the diagnosis of DM and discuss mechanisms of the damage caused by hyperglycemia. Finally, we’ll wrap up with a series of cases to review the complications of DM. Spoiler alert: some of the complications we hit are DKA, HHS, neuropathy, and infections. You don’t want to miss our discussion on diabetes and its complications.