Final answer:
Classic signs of systemic inflammatory response syndrome (SIRS) include fever, tachycardia, and tachypnea.
Step-by-step explanation:
The classic signs of systemic inflammatory response syndrome (SIRS) include fever, tachycardia (rapid heart rate), and tachypnea (rapid breathing). Fever is a common sign of inflammation that raises the body temperature in response to pathogens. Tachycardia and tachypnea are both physiological responses to the inflammatory process, as the body tries to increase oxygen delivery and remove waste products.