The nurse implements a primary prevention program for sexually transmitted diseases in a nurse-managed health center. Which outcome Indicates that the program was effective?

A) Incorrect - Developing new screening protocols is important, but it doesn't directly indicate that the program has prevented diseases. Screening protocols might catch diseases but don't prevent them. B) Incorrect - Clients receiving rehabilitation indicates they already had disease complications, which is not a primary prevention outcome. C) Correct- An improvement in average client scores on risk factor knowledge tests suggests that the primary prevention program has successfully educated clients about behaviors and practices that can help prevent sexually transmitted diseases. This improvement indicates that clients have a better understanding of the risks and protective measures, which is a key indicator of program effectiveness. D) Incorrect - Diagnosing clients early in their disease process is related to early detection (secondary prevention), not primary prevention.