MSFinals-2100

What is the appropriate management for a 65-year-old woman with confusion, profuse sweating, bluish discoloration of toes and fingertips, and a petechial rash on the left side of her anterior abdominal wall, who has a history of dysuria and was prescribed antibiotics by her GP three days ago, and is now found to have disseminated intravascular coagulation (DIC) based on her blood results?