A New Nurse Performs a Dressing Change on a Stage

A new nurse performs a dressing change on a stage II left heel pressure ulcer.Which action by the new nurse indicates a need for further teaching about pressure ulcer care?

A) The new nurse uses a hydrocolloid dressing (DuoDerm) to cover the ulcer.
B) The new nurse inserts a sterile cotton-tipped applicator into the pressure ulcer.
C) The new nurse irrigates the pressure ulcer with sterile saline using a 30-mL syringe.
D) The new nurse cleans the ulcer with a sterile dressing soaked in half-strength peroxide.