Question

which of the following is a reason that a third - party payer might require prior authorization before covering a medication?
to speed up the prescription filling process
to ensure the appropriate use of certain medications
to check for drug - drug interactions
to verify if the patient has prescription benefits

Explanation:

Third - party payers require prior authorization mainly to control costs and ensure appropriate use of medications. Checking for drug - drug interactions can be part of the review process during prior authorization. Verifying prescription benefits is also a reason. However, the most common reason is to ensure appropriate use of medications to avoid over - utilization or inappropriate use of costly drugs. Speeding up the prescription filling process is not a reason for prior authorization as it usually slows it down.

Answer:

To ensure the appropriate use of certain medications