国家早期预警评分 NEWS2
Enter vitals; choose hypercapnic SpO₂ scale 2 if prescribed target 88–92%; supplemental O₂ adds +2.
计算器
说明
NEWS2 aggregates physiological parameters for illness severity and escalation teaching (UK RCP).
局限
Scale 2 only when hypercapnic failure is documented; pediatric and obstetric patients differ.
仅供教学参考，不能替代临床诊断或治疗决策。