Final answer:
Yes, the nurse should change the post-mastoidectomy dressing.
Step-by-step explanation:
The nurse should change the post-mastoidectomy dressing, so the correct answer is a) Yes.
A mastoidectomy is a surgical procedure to remove infected mastoid air cells in the skull. After the surgery, a dressing is applied to protect the surgical site and prevent infection. Changing the dressing regularly is important to maintain cleanliness and monitor for any signs of complications.
By changing the dressing, the nurse can ensure that the wound is healing properly, reduce the risk of infection, and assess for any potential issues, such as bleeding or drainage. It is an essential part of post-operative care for patients who have undergone mastoidectomy.