Which term denotes the systemic inflammatory response to a variety of severe clinical insults?

• A. Sepsis
• B. Septic Shock
• C. Urticaria
• D. SIRS

Answer: (D)

Systemic inflammatory response syndrome describes the body’s broad, widespread inflammatory reaction that can follow many severe stresses—such as infection, trauma, burns, or pancreatitis. It’s defined by the presence of at least two of several signs: abnormal temperature (fever or hypothermia), rapid heart rate, rapid breathing or low PaCO2, and an abnormal white blood cell count. This pattern is about the body’s global inflammatory response, not a specific cause. When infection is the trigger, it’s called sepsis; when the process leads to persistent low blood pressure and organ dysfunction, it can progress to septic shock. The other options don’t fit because urticaria is a localized skin reaction, and septic shock is a later, more severe state that follows sepsis. So, the term that denotes the systemic inflammatory response to a variety of severe insults is SIRS.