Fig. 1
From: Use of a modified early warning score system to reduce the rate of in-hospital cardiac arrest
Callout algorithm. The modified early warning score (MEWS) is automatically calculated when documenting vital signs in the electronic medical record, and a warning alarm is activated if the score reaches the warning zone. After receiving a warning, the ward nurses contact an attending physician and intensive care unit (ICU) nurses immediately. Patients receive initial and continued treatment in the ward and are transferred to the ICU. If the patient has do-not-resuscitate (DNR) orders, the MEWS system adaptation is terminated