Surgery All of the following are features of SIRS except: A WBC >11000/mm3 or <4000/mm3 B Temperature > 38degC C Pulse rate >90/minute D Respiratory rate >24/minute and PaCO2 <22 mmHg 💡 Explanation All of the following are features of SIRS except: ✓ Correct Answer: D. Respiratory rate >24/minute and PaCO2 <22 mmHg