Which of the following is used to create the patient's requisition?

• A. Hospital Information System (HIS)
• B. Radiology Information System (RIS)
• C. Medical Image Management and Processing Systems (MIMPS)
• D. Electronic Medical Record (EMR)

Answer: (D)

Entering the imaging request starts in the electronic medical record, where the clinician places the order, adds the clinical indication, and confirms patient details. The EMR serves as the source of the requisition, carrying the essential information the radiology team needs to plan the study. That requisition is then communicated to the radiology workflow through the Radiology Information System, which handles scheduling, resource allocation, and results reporting. While the Hospital Information System covers broader hospital data, it is not the primary place where imaging orders are created. Medical Image Management and Processing Systems focus on storing and manipulating images rather than generating clinical orders.