RN, trained as MW. A registered nurse who takes graduate training in mid wifery. Similar to a physcian's assistant. They care for women, usually under the supervision of a physcian but in some states practice independently. They can provide general womens health care, obstetrical care, and deliver uncomplicated pregnancies. Complications, surgery, and ceserean sections are refered to a physcian.
Nurse-Midwife. A Certified Nurse-Midwife (CNM) is an advanced practice registered nurse who has specialized education and training in both Nursing and Midwifery. CNMs function as primary healthcare providers for women and most often provide medical care for relatively healthy women, pregnancies that aren’t high risk, and uncomplicated births.