A 62-year-old female with chronic schizophrenia has been receiving haloperidol decanoate 100 mg intramuscularly every four weeks for the past seven years. During a routine Abnormal Involuntary Movement Scale (AIMS) assessment, the PMHNP observes repetitive, involuntary lip-smacking and tongue protrusion movements that were not present at the previous assessment six months ago. The patient scores a 3 (moderate) on the facial and oral movements items and a 2 (mild) on the extremity movements items, with slight involuntary finger movements bilaterally. The patient is unaware of the movements and reports no functional impairment. Her psychiatric symptoms have been well-controlled on the current regimen for several years. Which evaluation of this finding is most appropriate?