Does the patient understand the situation?

This week's case involves a young woman who is at almost 24 weeks gestation with a chronic placental abruption, and whose fetus is somewhat small-for-age and has some potentially concerning findings on ultrasound. Maximizing the fetus's probability of a good outcome would likely require a classical C-section, which entails risk and carries significance for the mother's future reproductive options. The team is concerned that the patient may not appreciate the significance of this decision, as well as resuscitative options for the baby. What should we do if a patient in this situation lacks the capacity to make these complex decisions?