Who is The Nurse Practitioner from Cutting for Stone and what is their importance?

We meet the Nurse Practitioner, who is a young nun, in the novel's opening. She's been sent to learn her nursing duties at Missing Hospital, and although she is very good at memorizing facts from books..... she is terrible at relating that information to actual patient care. When sent to check on Sister Mary Praise, the Nurse Practitioner misses the signs of distress that could have saved Sister Mary's life. In addition, when the twins are born, she fails to notice that they are still alive and forgets to check for their breathing, almost killing them as well.