Final answer:
Prior to hydrotherapy treatment for wound debridement following a burn, the nurse should administer an analgesic to the preschooler. Denying discomfort during the assessment may indicate that the child is in pain and needs pain relief. Applying pressure over the catheter insertion site and addressing abdominal distention are not necessary.
Step-by-step explanation:
Prior to the hydrotherapy treatment for wound debridement following a burn, the nurse should administer an analgesic to the preschooler. Pain management is important to ensure comfort during the procedure.
The nurse should also assess the child's level of discomfort. Denying discomfort during the assessment may indicate that the child is in pain and needs pain relief.
Applying pressure over the catheter insertion site is not necessary prior to the procedure, as it is unrelated to wound debridement.
Abdominal distention is also not relevant to the procedure and does not need to be addressed prior to the treatment.