Fig. 1From: Predicting cardiorespiratory instabilityScreen display of physiologic data stream of a patient with progressive decompensation to overt cardiorespiratory insufficiency over 6 h. Blue arrows mark times when the fused instability index (vital signs index [VSI]) exceeds “normal” and the black arrow, the time when medical emergency response team activation occurred. HR: heart rate; RR: respiratory rate; SpO 2 : pulse oximeter oxygen saturation; BP: blood pressureBack to article page