Why is Julia worried about Dr. Lynn’s suturing skills? How are her worries alleviated?

Julia does not know much about Dr. Lynn prior to her arrival in the ward. She only knows that Dr. Lynn is in general practice. Julia's worries are soon relieved, when Dr. Lynn tells her about her experiences in obstetrics and midwifery. Julia's worries are also alleviated as she watches Dr. Lynn's gentle, skilled hands at work.