In clients with heart disease during pregnancy, what care measure can promote a healthy pregnancy?

Restricting visitors who may have an active infection is crucial for clients with heart disease during pregnancy because these individuals are often at a higher risk for complications. An active infection can put additional strain on the heart and the overall cardiovascular system, potentially leading to severe consequences for both the mother and the developing fetus.

By minimizing the risk of infections, the healthcare provider can help ensure a stable environment that promotes the health of both the mother and the baby. This practice is essential because infections can trigger exacerbations of heart disease and can hinder the body's ability to cope with the physiological changes that occur during pregnancy, such as increased blood volume and cardiac output. Therefore, implementing measures that protect against infection directly contributes to a healthier pregnancy outcome for clients with pre-existing heart conditions.