Explore the comprehensive medical lecture on Diabetic Ketoacidosis (DKA), focusing on its symptoms, causes, and diagnosis. Delve into the pathophysiology of DKA, including its prevalence in different types of diabetes and the circumstances leading to severe insulin deficiency. Understand the process of ketogenesis, the role of ketone bodies, lipolysis, and gluconeogenesis in DKA development. Learn about important defense mechanisms during acidic conditions, classical signs like sweet fruity breath and Kussmaul's breathing, diagnostic criteria, and potassium levels in DKA patients. Gain valuable insights into this potentially life-threatening complication of diabetes to enhance your medical knowledge and patient care skills.