A PHI Form is used to designate who can speak on a patient’s behalf.

• A. It is used to designate who can speak on the patient's behalf
• B. It authorizes changes to insurance billing
• C. It triggers pharmacy inventory updates
• D. It is used to file a patient complaint

Answer: (A)

The main idea here is ensuring who is allowed to access and discuss a patient’s health information. A PHI form is a signed authorization that names specific individuals who may speak on the patient’s behalf and receive information about their care. This protects privacy while letting trusted people, like family members or caregivers, be involved in conversations with providers.

Therefore, this option is the best choice because it directly describes the purpose of a PHI form — designate who can speak for the patient. The other options describe actions that aren’t the purpose of this form: changing insurance billing, updating pharmacy inventory, or filing a patient complaint. Those require different processes and authorities.