Which statement by a client with a history of cardiac disease shows a need for further nursing instruction during pregnancy?

The statement indicating a need for further nursing instruction is centered around the client's concerns about avoiding contact with others to prevent infection during pregnancy. While it is true that individuals with underlying health conditions, such as cardiac disease, can be at higher risk for complications from infections, complete social isolation is not typically a recommended or necessary strategy.

During pregnancy, especially for those with pre-existing conditions, the focus should be on balanced health management rather than isolating oneself excessively. Instead, nursing instruction would ideally guide the client to maintain social interactions while taking appropriate precautions, such as practicing good hygiene and avoiding close contact with sick individuals. This approach supports both mental and emotional well-being, which is crucial during pregnancy, while still being aware of health risks.

The other statements reflect appropriate measures. Resting more, limiting strenuous physical activity, and monitoring heart health are all critical approaches for a client with a history of cardiac disease to manage their condition effectively during pregnancy.