A nurse is assessing a client who is receiving IV antibiotics for a wound infection. The client reports diarrhea. Which of the following actions should the nurse take?

The correct answer is D: All of the above. Diarrhea in a client receiving IV antibiotics may indicate a possible antibiotic-associated diarrhea or colitis. Continuing the antibiotic as prescribed is crucial for treating the underlying infection. Obtaining a stool sample for culture helps identify the causative organism and guide appropriate treatment. Increasing fluid intake is essential to prevent dehydration due to fluid loss from diarrhea. Therefore, all these actions are necessary to manage the client's condition effectively. The other options are not comprehensive enough to address the potential causes and consequences of diarrhea in this context.