Final answer:
Patient history is not typically required on a requisition form. Requisitions must have the tests ordered, priority status, and patient number, but patient history is maintained in the patient's medical records.
Step-by-step explanation:
In the context of a laboratory or clinical setting, a requisition is a form that is filled out to request certain tests or services. When correctly completing a requisition form, it is essential to include the test(s) ordered, the priority status of the test (if applicable), and the patient number to accurately identify the patient and ensure the right tests are performed on the right individual.
The one element listed that is not typically required on a requisition form is the B. Patient history. While patient history is crucial in a clinical setting to help make informed medical decisions, it is not a standard requirement on the requisition itself. Instead, patient history is usually documented in the patient's medical record and may be referenced by a healthcare provider, but it is not routinely included on the laboratory requisition form.