A client who is in the acute phase of recovery from a burn injury has yet to experience adequate pain control. The nurse recognizes that which pain management strategy should best meet this client's pain control needs?

A. Distraction and relaxation techniques: These non-pharmacological methods can be supportive in managing anxiety or enhancing comfort but are not sufficient alone for managing the intense pain of acute burn injuries. B. A patient-controlled analgesia (PCA) system: PCA provides consistent and immediate pain relief, allowing the client to self-administer opioid doses within prescribed limits. It is ideal during the acute phase when pain is severe and continuous. C. A combination of benzodiazepines and topical anesthetics: Benzodiazepines help manage anxiety, and topical anesthetics may offer local relief, but together they do not adequately address the deep tissue pain associated with burns. D. The use of oral opioids: Oral opioids may be used later in the recovery phase but have slower onset and reduced efficacy in severe pain situations. In acute burn cases, IV opioids via PCA offer faster and more effective relief.