Jenna heard a family story about Great Grandfather Frederick who died of a lung disease, but no one knows which lung disease it was. How could a genetic counselor help Jenna?

A genetic counselor can take a family history to learn whether the lung disease may have affected other relatives and could be inherited. Based on that history, the counselor can discuss whether genetic testing may be useful. A lung-function test measures how well Jenna’s lungs work, but it would not identify the cause of her great-grandfather’s disease.

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