A pregnant woman reports recent exposure to rubella. What is the most appropriate response from the nurse?

The response regarding checking rubella titer screening results is the most appropriate because it directly addresses the concern of the pregnant woman regarding her exposure to rubella. Assessing her rubella immunity status through titer screening is a critical step, as it determines whether she is at risk of contracting the virus and can guide further clinical management.

If the woman is found to be immune, she may likely not face significant risk to her pregnancy. Conversely, if she is not immune, appropriate precautions and interventions can be taken to protect both her and the fetus, including providing education about potential risks associated with rubella during pregnancy. This response prioritizes the health and safety of the mother and the fetus by seeking immediate clarity on her immunity status, which is essential in guiding any necessary actions or follow-ups.

The other options, while relevant to aspects of infection prevention and management, do not directly address the immediate need for assessment of her immunity and potential next steps based on her titer results.