Table 1. – Definition of the variables reported and deviations that trigger an alert.

	Normal	Alert
Peripheral saturation of O2(SpO2)	∆ < 4% of basal	∆ ≥ 4% and SpO2< 92%
Heart Rate	50-100 ppm	<50 or > 100
Systolic blood pressure	∆ ≤ 20% of basal	∆ > 20% of basal
Diastolic blood pressure	∆ ≤ 20% of basal	∆ > 20% of basal
Body weight	∆ <1Kg	∆ ≥ 1 Kg in 24h or ≥ 2Kg in 3 days
Temperature	≤ 37.5ºC	>37.5ºC
Three-lead electrocardiogram	HR 50-100	HR <50 or > 100

HR: Heart rate. Kg: kilogram.