The priming factor leads to what systemic condition?

• A. Localized swelling only
• B. Hypothyroidism
• C. SIRS
• D. Hyperkalemia without inflammation

Answer: (C)

A priming factor triggers a widespread inflammatory cascade, not just a local reaction. When the triggering insult—such as injury or infection—initiates the innate immune response, inflammatory mediators spill into the circulation and affect the whole body. That systemic response is what we call a systemic inflammatory response syndrome (SIRS). It shows up with signs like fever or abnormal temperature, a fast heart rate, rapid breathing, and abnormal white blood cell counts. So, the priming factor leads to a systemic inflammatory state, rather than isolated local swelling, hypothyroidism, or a potassium imbalance without inflammation. This distinction matters in the ICU because SIRS can progress to sepsis or organ dysfunction and influences how we monitor and mobilize patients.