Final answer:
The situation where multiple Registered Health Record Numbers (RHRNs) are created for a single patient in Clinibase is referred to as a Duplicate RHRN Occurrence (DRO), which can lead to errors in managing patient's records.
Step-by-step explanation:
When more than one Registered Health Record Number (RHRN) has been created for a patient in Clinibase, the correct terminology for this situation among the provided options is Duplicate RHRN Occurrence (DRO). This problem occurs within healthcare information systems when a single patient is accidentally assigned multiple health record numbers, leading to possible confusion and errors in the patient's medical records management. It is important to address this issue promptly to maintain the integrity of the patient's health information and ensure accurate medical care.