Which of the following systems is a centralized collection of patient information from many systems

An Electronic Medical Record (EMR) is specific to a single practice and contains the medical history of patients within that practice. Unlike EHRs, EMRs do not integrate data from multiple systems or providers, limiting their scope to one healthcare organization.

A Personal Health Record (PHR) is managed by patients themselves, allowing them to maintain and organize their health information. While PHRs can include data from various sources, they are not centralized systems that integrate information from many healthcare providers like EHRs.

A Practice Management System (PMS) focuses on the administrative tasks of a healthcare practice, such as scheduling appointments, billing, and managing patient records within that practice. It does not provide a centralized collection of patient information across multiple systems like an EHR does.