Where should a physician's written order be maintained?

The physician's written order should be maintained in the residence clinical record because this record is specifically designed to document all aspects of patient care, including medical orders, assessments, treatments, and any changes in a resident's condition. Keeping the physician's orders in the clinical record ensures that they are easily accessible to authorized staff involved in the resident's care, promoting effective communication and coordination among healthcare providers.

This practice is essential for maintaining a thorough and organized medical history, which is crucial for ongoing patient management and compliance with regulatory standards in residential care or assisted living settings. It allows for accurate documentation and helps ensure that the prescribed treatments are followed accurately by caregivers. The other options, such as the financial record or pharmacy records, do not provide the same direct access and context regarding a patient's clinical care and can lead to potential gaps in essential information regarding treatment protocols.