The Heart by Maylis de Kerangal

From Goodreads: "Just before dawn on a Sunday morning, three teenage boys go surfing. While driving home exhausted, the boys are involved in a fatal car accident on a deserted road. Two of the boys are wearing seat belts; one goes through the windshield. The doctors declare him brain-dead shortly after arriving at the hospital, but his heart is still beating.

The Heart takes place over the twenty-four hours surrounding the resulting heart transplant, as life is taken from a young man and given to a woman close to death. In gorgeous, ruminative prose, it examines the deepest feelings of everyone involved as they navigate decisions of life and death."