Final answer:
The term for requesting a patient record for a scheduled service is a health information requisition. It is an official process in healthcare settings to access a patient's necessary medical data for upcoming services.
Step-by-step explanation:
The request of a patient record for a scheduled service is called a health information requisition. In a medical or healthcare setting, when a patient is scheduled for a service such as a consultation, surgery, or any treatment, the medical staff will often need to access that patient's medical records. To do this, they will submit a requisition, which is an official request used to obtain the necessary patient information from the medical records department or electronic health record system. This process ensures that the healthcare provider has all the relevant information, such as medical history, previous treatments, and test results, to provide the best possible care for the patient.