Perinatal nursing is another term for obstetrical nursing. Obstetrical nurses assist with prenatal care and testing, prenatal care and testing for patients with pregnancy complications, childbirth and delivery care, and postpartum care. Obstetrics is a branch of medicine that deals with the care and treatment of women during pregnancy, childbirth, and the pre- and post-delivery period. Postoperative treatment, stress test evaluations, cardiac monitoring, vascular monitoring, and health assessments are all performed by obstetrical nurses in a surgical unit. Patient care technicians and surgical technologists are supervised by obstetrical nurses. Gynecology is the study of disorders of the reproductive organs, including the uterus, fallopian tubes, cervix, ovaries, and vagina. Gynecological nursing is a practical approach to a multitude of women's health concerns.