What evaluation must be performed for pain medication administered on a PRN basis?

When administering pain medication on a PRN (as needed) basis, it is essential to evaluate the resident's pain before administering the medication. This assessment ensures that the medication is given appropriately and that it addresses the resident’s current pain levels effectively. Understanding the resident's pain intensity, location, and character allows for appropriate decision-making regarding medication choices and dosages.

Evaluating pain prior to medication administration is a critical part of providing individualized care. It helps in determining not just whether to give the medication, but also in assessing the effectiveness of the treatment once it's administered. This evaluation also aids healthcare providers in monitoring patient outcomes and in making necessary adjustments for future care plans.

Other considerations, such as reviewing previous medications or potential side effects, while important, come into play after the assessment of current pain levels has established the necessity for medication. Additionally, verifying the resident’s identity is crucial for safety but does not directly relate to the clinical evaluation of pain severity and need for treatment. Therefore, the focus on pain assessment prior to administering PRN medication is the primary reason why it is deemed the correct evaluation step in this context.