Which of the following is a key difference between an EMR and an EHR?

A key distinction between an Electronic Medical Record (EMR) and an Electronic Health Record (EHR) lies in the level of accessibility and sharing capability. EHRs are designed to be comprehensive and allow for the sharing of patient information across different healthcare organizations. They facilitate a broader view of a patient's health history and treatment, which is critical for coordinated care, especially in situations where a patient may see multiple specialists or receive care from different facilities.

In contrast, EMRs are typically confined to individual practices. They store medical and treatment history within a single healthcare provider’s office and are not usually designed for sharing outside that organization. This limitation can hinder the continuity of care when a patient transitions between different healthcare providers or services.

The other options present statements that do not accurately represent the differences between EMR and EHR systems, further highlighting why option A is the correct choice.