Telemonitoring refers to remotely collecting and sending patient data so that it can be interpreted and then contribute to the patient's ongoing management. It allows the patient to stay in their home or usual place of residence, and maintain contact with the team providing their care. Most commonly the data collected is a physiological variable like blood pressure, but it can also be self reported symptoms, or activity levels. In addition, alarm systems, fall detection, treatment adherence, and environmental monitoring are also forms of telemonitoring. Collecting and sending the data in real time is referred to as telemetry.