Samantha Calder

Samantha Calder was a patient at Grey Sloan Memorial Hospital who underwent a rare heart/liver transplant.

Illness
While Meredith was still pregnant, she diagnosed Samantha Calder with familial hypercholesterolemia.

Transplant Surgery
When a transplant match became available, Cristina and Meredith planned to perform the transplant together.

Samantha and her husband were excited that she would finally get her transplant, as the yoga music they used to keep her calm to prevent further heart attacks was getting on his nerves. They were also excited at the possibility of having a child after her surgery.

While they were waiting for her organs to be delivered to the hospital, she went into heart failure again, but they were able to keep her stable long enough for Cristina Yang and Miranda Bailey to get her into surgery and perform the transplant.

Davis Calder
Samantha and Davis are married. They have no children, but plan to try after she heals from her surgery.

Meredith Grey
Samantha got along well with Meredith Grey, who gave her the initial diagnosis of familial hypercholesterolemia. When Meredith came in to examine her before the surgery, she asked what happened to Meredith's baby bump and was delighted to hear that she'd had a baby boy.