VITAL APP: Development and User Acceptability of an IoT-Based Patient Monitoring Device for Synchronous Measurements of Vital Signs

Vital signs monitoring is a customarily repetitive, tedious part of patient care that nonetheless requires constant measurements and documentations to avert significant adverse consequences. Routinely performed by nurses, measurements of vital signs are recorded at regular intervals for safeguarding patient safety yet some evidence concerning the frequency of noncompliance in vital sign collection as well as the inaccuracy of vital sign measurements is still at large. This paper covered the development of a patient monitoring device using hardware modules such as pulse rate sensor, sphygmomanometer, and body temperature sensor that communicates through wireless technology protocol based on IEEE 802.15.4 standard for synchronous measurements of multiple vital signs such as body temperature, pulse rate, and blood pressure. Physiological data accuracy based from the Modified Early Warning Score was measured by Bland-Altman and Pearson correlation analysis, and user acceptability was inspected using IoT technology trust model with the aid of health professionals and patients from hospitals and diagnostic centers. Vital sign measurements by VITAL APP and health professionals correlated well, and the device was accepted as an important tool in patient monitoring.