Which of the following items is NOT required to appear on a test requisition?

The correct choice highlights that a patient's height is not a mandatory item to be included on a test requisition. Test requisitions typically require essential identifying information to ensure accurate patient identification and proper handling of samples. Key details such as the patient's name, date of birth, and physician's name are crucial for establishing the identity of the individual receiving testing and for correlating results with the appropriate healthcare provider.

Including the patient's height is not standard practice for most routine laboratory tests, as it does not directly influence the testing process or the interpretation of results in the way that the other required items do. Therefore, while height can be relevant for specific tests or assessments, it is generally not a required element on the test requisition form, which focuses on ensuring proper identification and communication regarding the patient and the ordering physician.