Which of the following is a required item for outpatient IV admixture?

In the context of outpatient IV admixture, cautionary information is essential for ensuring patient safety and effective medication management. This information typically includes details on possible side effects, interactions with other medications, and any specific instructions related to the administration of the IV admixture. Having this information readily available helps healthcare providers communicate effectively with patients and ensures proper usage of the medication.

While other aspects, such as a patient's allergy history, are indeed important for overall patient care, they may not be strictly classified as required items specifically for the IV admixture process. Medication cost, while a relevant consideration in pharmacy practice, does not directly influence the preparation or administration of an IV admixture. Similarly, the time of administration may be pertinent in a broader clinical context but is not a specified requirement for the IV admixture itself. Thus, cautionary information is the most critical element in this case, as it directly addresses patient safety and medication efficacy.