The practical nurse (PN) notes that a client has 2+ pitting edema in both feet. The previous day the client had 1+ pitting edema. Which action should the PN take in response to this change?

Encourage the client to increase oral fluid intake.

Check for a decrease in the client's hemoglobin.

Assess the client for signs of fluid volume overload.

Document the improvement in the client's medical record.