Cardiac arrest occurs when there is a worsening of respiratory, cardiac, and/ or cerebral function without appropriate response to abnormal physiological parameters. Early warning score tool have been evolved scientifically and it is a very important tool to determine the changes in the condition of the patient early so that it can be corrected at an earlier stage. Currently MEWS is being practiced by many hospitals across the globe. As per the current literature review MEWS could be used widely and can detect catastrophic medical events such as cardiac arrest quite earlier than it actually happens.
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