Nursing advocacy in a postgenomic age.

The Human Genome Project will change how health is defined and how disease is prevented, diagnosed, and treated. As the largest group of health care providers in contact with patients, nurses need to be competent in the science of genetics. Beyond this, nurses need to understand the complexities that arise in genomic health care. Ethical, legal, and social issues are integral to the delivery of genomic health care, and nurses must have an astute understanding of such complexities. What it means to know, to reason, and to act in this postgenomic age is explored.