How many women were nurses in the Civil War?

There were very few women nurses at the begining of the civil war. The time that most women became nurses was after the north and south needed all men to fight instead of being nurses. Then when the draft was created there would have been more women nurses apposed to having more male nurses because both the north and the south needed the man power to fight.
Women had taken over the profession of being a nurse by the end of the war.