Which of the following is a common sign that may indicate a developing infection post-surgery?

All of the options provided are significant indicators that could suggest a developing infection after surgery.

Pain exceeding previous levels can be a sign that something is amiss, particularly if it escalates beyond what is expected during the healing process. Increased pain could signal inflammation or the body’s response to an infection.

Swelling around the incision site is also a common post-surgical occurrence; however, if the swelling continues to grow or is accompanied by other symptoms, it may indicate a problem, including infection. The presence of swelling can often be linked to fluid accumulation or inflammation, which may occur in an infected area.

Red streaks or drainage coming from the surgical site are particularly telling signs of an infection. The appearance of red streaks is often indicative of lymphatic spread of infection, and drainage can suggest that the wound has become infected, potentially leading to further complications.

Because each of these signs individually can point to an infection, recognizing any of them is crucial for timely intervention, making the selection of all of the above as the correct answer appropriate in this context.