What does a retrospective review aim to confirm?

A retrospective review is designed to assess and confirm the medical necessity of services that have already been provided to patients. This process allows healthcare professionals and insurers to evaluate whether the treatments or interventions given were appropriate based on the patient's condition at the time of service. By looking back at past medical records, a retrospective review helps to ensure that the healthcare resources were utilized effectively and in alignment with established guidelines and standards of care.

This confirmation is crucial for healthcare providers and insurers to maintain accountability and to manage costs effectively. It also plays a significant role in quality assurance and can influence future treatment decisions based on the documented effectiveness of prior interventions.

Thus, the focus on pre-existing services aligns perfectly with the essence of a retrospective review, making it the correct choice in this context.