3.心电图
非窦性心律(Rhythm other than sinus)or 房性期前收缩(PACs,最末一次EKG)[7]
室性早搏>5 bpm(PVCs,任何时候的EKG)[7]
4.一般状况
PaO2 <60 or PCO2 >50, K <3.0, or HCO3 <20, BUN >50, or Cr >3.0, GOT 不正常,
慢性<!--HAODF:8:ganbing-->肝病<!--HAODF:/8:ganbing-->征像,or病人非心脏原因的卧床不起(patient bedridden from noncardiac causes) [3]