A nurse is caring for a client who has an open abdominal wound and a negative-pressure wound therapy (NPWT) device. Which of the following actions should the nurse take?

Rationale A. Replace the NPWT dressing every 12 hours: NPWT dressings are typically changed every 48–72 hours, or sooner if the dressing is saturated or malfunctioning. Changing the dressing every 12 hours is excessive and can disrupt wound healing and increase infection risk. B. Allow the wound to be open to air at least once per shift: Negative-pressure wound therapy requires a sealed environment to maintain suction and promote healing. Exposing the wound to air would compromise negative pressure, delay healing, and increase infection risk. C. Shave the skin around the wound prior to applying the wound therapy device: Shaving can cause microabrasions and increase the risk of infection. Hair should be gently trimmed if necessary, but shaving is not recommended prior to applying NPWT dressings. D. If client reports pain, decrease the suction to 75 mm Hg: Pain during NPWT can occur if suction pressure is too high. Reducing suction to 75 mm Hg helps minimize discomfort while maintaining therapeutic negative pressure. Adjusting suction appropriately promotes client comfort and adherence to therapy.