Which of the following is one of the four main functions of EHRs/EMRs?

• A. Patient appointment scheduling and reminders.
• B. Medical billing submission to payers.
• C. Laboratory charge reconciliation.
• D. Order entry for tests.

Answer: (D)

Electronic health record systems are built around four primary capabilities: organizing and storing patient data, managing incoming test results, placing and tracking orders for tests and other services, and providing decision support to aid clinical care. Placing orders for tests electronically fits squarely with the order entry and management function. It lets clinicians create lab or imaging requests directly from the chart, routes them to the appropriate department, and links the orders to the resulting reports and any alerts or guidelines that help guide care. This streamlines the workflow, reduces errors from handwritten orders, and speeds up turnaround. The other activities—scheduling appointments, submitting billing to payers, or reconciling laboratory charges—are typically handled by separate modules like practice management or revenue cycle systems, not core EHR functions.