Multifunctional pad, including an auscultation sensor configured to detect audio signals of a subject and provide subject audio data and an electrocardiogram (ECG) sensor configured to detect electrical activity of the subject and provide subject electrical activity data and an optional temperature sensor wherein the multifunctional pad is configured to be affixed to a skin surface of the subject by an adhesive layer. Also provided is A monitoring system, including an auscultation sensor configured to detect audio signals of a subject and provide subject audio data an electrocardiogram (ECG) sensor configured to detect electrical activity of the subject and provide subject electrical activity data one or more monitoring devices and a connection interface configured to operatively couple the multifunctional pad to the one or more monitoring devices.