Question

Which of the following is the usual cause of septic shock?

1) Septicemia
2) Exotoxin
3) Endotoxin
4) Lymphangitis

Answer 1

Septic shock is usually caused by septicemia, a widespread bacterial infection resulting in an inflammatory response and low blood pressure.

Step-by-step explanation:

Septic shock is usually caused by septicemia, which is a widespread bacterial infection that results in an organismal-level inflammatory response. Gram-negative bacteria are engulfed by immune system phagocytes, which release tumor necrosis factor, a molecule involved in inflammation and fever. With high concentrations of tumor necrosis factor, the inflammatory reaction is severe, causing fluid loss and dangerously low blood pressure.