A 47-year-old African American male presents to the clinic with chief complaints of polyuria, polydipsia, polyphagia, and weight loss. He also said that his vison occasionally blurs and that his feet sometimes feel numb. He has increased hunger despite weight loss and admits to feeling unusually tired. He also complains of “swelling” and enlargement of his abdomen.
Past Medical History (PMH) significant for HTN fairly well controlled with and ACE inhibitor; central obesity, and dyslipidemia treated with a statin, Review of systems negative except for chief complaint. Physical exam unremarkable except for decreased filament test both feet. Random glucose in office 290 mg/dl. The APRN diagnoses the patient with type II DM and prescribes oral medication to control the glucose level and also referred the patient to a dietician for dietary teaching.
What is the basic underlying pathophysiology of Type II DM?