A home health nurse is visiting a client who has heart failure and a prescription for furosemide. The nurse identifies that the client has gained 2.5 kg (5 lb) since the last visit 2 days ago. Which of the following actions should the nurse take first?

A. Teaching about sodium is important but not an immediate action in response to weight gain. B. Dangling the legs can help reduce edema but does not address the underlying cause of fluid retention. C. Determining medication adherence is helpful but is secondary to addressing the acute concern of fluid retention. D. Notifying the provider is the priority action. A 5 lb weight gain in 2 days may indicate fluid retention and worsening heart failure, requiring immediate intervention from the provider.