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Table 1 The modified early warning score (MEWS) system

From: Use of a modified early warning score system to reduce the rate of in-hospital cardiac arrest

Score 3 2 1 0 1 2 3
Systolic blood pressure (mmHg) ≤70 71–80 81–100 101–199   ≥200  
Heart rate (bpm)   ≤40 41–50 51–100 101–110 111–129 ≥130
Respiratory rate (bpm)   ≤8   9–14 15–20 21–29 ≥30
Temperature (°C)   ≤35.0   35.1–38.4   ≥38.5  
Conscious level     Alert Reacting to voice Reacting to pain Unresponsive
Any concern about the patient’s condition     No Yes   
  1. The MEWS is calculated by summing the parameters one or more times a day, depending on the severity of the patient’s condition