There are three options to become a registered nurse as follows.
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Nurses don't go to medical school. They get a 4 year degree in a university medical program.
3 years
4
After high school, you enroll in college which is 4 years. Then you apply to medical school.
First, you must have a bachelor's degree with completion of the prerequisite coursework required by medical schools. Then it will take four years of medical school. There will be an additional three or more years to complete the internship and residency requirements.
After qualifying from High School you will need at least 3 years to qualify for a nurse
It takes about 11 years after high school, 4 years of collage, 4 years of medical school, and 3 years of medical training.
12 years, 4 for college, 4 for medical school, 4 for internship
8 years
Four years
4 years undergraduate + 4 years medical school + 1 year internship + 3-5 years anesthesia residency (length depends on whether or not you subspecialize). [12-15 total] You can become a CRNA (certified registered nurse anesthetist) with 4 years undergraduate + post-graduate training of I think 2-4 years. [6 total]
Obstetricians typically complete 4 years of undergraduate education, followed by 4 years of medical school. After medical school, they usually undergo 4 years of specialty training in obstetrics and gynecology. So, in total, it takes around 12 years of education and training to become an obstetrician.
A Medical Assistant cannot refer herself as being a nurse, since they are two different titles (a nurse would be an RN, LPN or a Practical Nurse). Many doctors refer to their Medical Assistants as nurses but they are incorrect in doing so.