Saturday, March 18, 2017

Pathophysiology of Diabetes Ketoacidosis (DKA)


In this video I have the pathophysiology of diabetes ketoacidosis seen primarily in type 1 diabetes mellitus. Absolute deficiency of insulin leads to increase in glucagon and decreased peripheral utilization of glucose leading to increased blood glucose level. Increased glucagon along with catecholamines and cortisol leads to increased gluconeogenesis thereby outpouring of glucose from liver into blood which increases blood glucose level. Increased lipolysis leads to increased free fatty acids leading to increased generation of ketone bodies. Increased ketone bodies like acetoacetate and beta-hydroxybutyrate in the blood lead to decrease in blood pH leading to metabolic acidosis. 

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