Our MEWS score calculator is a simple tool for computing the Modified Early Warning Score of your patient. The calculations provided here are suitable for patients hospitalized due to COVID-19 infection, surgery, or any other serious medical condition.
The MEWS score will evaluate the mortality risk connected to your patient's state and will indicate a need for increased medical attention. ⏱️
Read on to discover how to correctly measure MEWS in the medical setting and find out what is a bad MEWS score. We will also discuss the most critical warning signs in the hospital work routine.
What is a MEWS score?
The MEWS score stands for the Modified Early Warning Score. We use it to quickly determine whether a particular patient needs increased medical attention.
The original EWS score originated in the late 90's - it was modified later in the hope to cover a broader spectrum of patients in different clinical situations. There are also other versions of EWS score, designed for specific applications; these include:
NEWS - National Early Warning Score
Developed by the Royal College of Physicians to bring a common national standard for UK hospitals.
MEOWS - Modified Early Obstetric Warning Score 🤰
Designed for postpartum and pregnant women care.
PEWS - Paediatric Early Warning Score 🧒
Used in patients under 16 years of age.
Why do we choose MEWS?
MEWS checks for the most important signs of deterioration of the patient's condition: shock, infection, as well as neurological, cardiological, or pulmonological abnormalities. This scale also has an extremely straightforward interpretation. It has a sensitivity of 75% and specificity of 83% for a threshold of 4 and more points.
Use of MEWS in patients with COVID-19
The most common reason for the deterioration of hospitalized patients is respiratory compromise. MEWS is a score that emphasizes these kinds of abnormalities, making it a perfect tool for assessing patients with respiratory distress caused by the cytokine storm, present during SARS Cov-2 infection.
|💡 Some countries have already chosen MEWS score as a recommended tool for assessing COVID-19 patients.|
Do you already know it all? Check our other tools for emergency state & quick patients' evaluation.
MEWS score meaning
MEWS score is delightfully easy to understand; look at the table below and compare your patient's results with the enumerated MEWS ranges.
|MEWS score||Description||Risk of death or ICU admission|
|<3||Patient in a stable condition||7.9%|
|3-4||Signs of respiratory failure. Consider higher level of care.||12.7%|
|≥5||Patient in a critical condition. Higher level of care recommended.||30%|
|💡 In COVID-19 patients, some people with MEWS <3 and fully developed symptoms of the disease might also require hospitalization!|
Proning is recommended in all patients, regardless of their MEWS results.
How to calculate the MEWS score?
Our modified early warning score tool uses the following equation:
MEWS score = Systolic blood pressure + Heart rate + Urine output + Respiratory rate + Temperature + AVPU
To obtain the number of points for a given category, use the table below:
|Systolic BP (mmHg)||>199||100-199||80-99||70-79||<70|
|Heart rate (bpm)||>129||110-129||100-109||50-99||40-49||30-39||<30|
|Respiratory rate (breaths/min)||>35||31-35||21-30||9-20||<7|
|Urine output ml/kg/h||None||< 0.5||Normal|
|❗ The MEWSC score calculator shouldn't be used as a substitute for clinical knowledge or judgment. Always double check your calculations.|
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