MEWS Score Calculator

What is the Modified Early Warning Score (MEWS)?

The Modified Early Warning Score (MEWS) is a bedside clinical scoring system used by healthcare professionals to rapidly identify acute physiological deterioration in adult patients. By assigning point values to changes in basic vital signs, MEWS enables early clinical intervention before cardiac arrest or critical organ failure occurs.

Physiological Parameters Assessed

• Systolic Blood Pressure: Assesses for hypotension or severe hypertension.
• Heart Rate / Pulse: Identifies severe bradycardia (< 40 bpm) or tachycardia (≥ 130 bpm).
• Respiratory Rate: Evaluates tachypnea or respiratory depression (rates < 9 or ≥ 30 breaths/min).
• Body Temperature: Detects hypothermia (< 35.0 °C) or hyperthermia / fever.
• AVPU Mental Status: Evaluates central nervous system responsiveness (Alert, Responds to Voice, Responds to Pain, Unresponsive).

Clinical Action Thresholds

Early recognition of escalating scores guides nursing and medical response protocols to prevent adverse events.