Septic shock is a life-threatening condition that occurs when the body responds improperly to an infection, leading to a dramatic drop in blood pressure that can damage the lungs, kidneys, liver, and other organs. Septic shock is the most severe stage of sepsis, which occurs when the immune system has an extreme reaction to an infection. Any type of infection can lead to sepsis, including bacterial, viral, or fungal infections. The source of the infection can be anywhere in the body, but most often, it starts in the lungs, abdomen, or urinary tract. Toxins produced by bacteria can damage the small blood vessels, causing them to leak fluid into the surrounding tissues, which can affect the hearts ability to pump blood to vital organs, such as the brain and liver.

Symptoms of septic shock include a dramatic drop in blood pressure, rapid breathing, sweating, feeling lightheaded, shivering, and confusion. If you develop any symptoms of sepsis or septic shock, you should call 911 or go to the emergency room immediately. Early treatment of sepsis improves chances for survival. Treatment may include antibiotics, intravenous fluids, and medications to support blood pressure and organ function. People with a weakened immune system have an increased risk of developing septic shock.