This document provides guidelines for the first line management of adult patients with diabetic ketoacidosis (DKA). It discusses the causes and symptoms of DKA and outlines the key steps in treatment, which include fluid resuscitation, insulin therapy, monitoring of electrolytes and pH, and correcting dehydration and acidosis over 24 hours. The guidelines emphasize restoring circulating volume, reducing blood glucose, and correcting electrolyte imbalances to resolve DKA while avoiding potential complications.