If your amniotic membrane ruptures -- or your water breaks -- the contractions may get much stronger. When the cervix dilates from 8 to 10 centimeters (called the Transition Phase), contractions are 2 to 3 minutes apart and last about 1 minute.his part of labor (called the Latent Phase) is best experienced in the comfort of your home. When the cervix dilates from 4 to 8 centimeters (called the Active Phase), contractions get stronger and are about 3 minutes apart, lasting about 45 seconds.
Cardiac sonographer salary. Cardiac sonographerâs salary is around $50,000 in the United States, but this significantly gets higher as he stays longer in the work. Indeed, a cardiac sonographer employed for more than 1 year can expect from $30,545 â $65,952.
Salary Ranges. The U.S. Bureau of Labor Statistics groups obstetric sonographers under the banner of diagnostic medical sonographers. Diagnostic medical sonographers earned median annual salaries of $65,860 in May 2012. The top 10 percent earned more than $91,070.The lowest 10 percent earned less than $44,990, and the lowest 25 percent earned less than $54,260, which are the salary ranges under which many entry-level sonographers would fall.he U.S. Bureau of Labor Statistics groups obstetric sonographers under the banner of diagnostic medical sonographers. Diagnostic medical sonographers earned median annual salaries of $65,860 in May 2012. The top 10 percent earned more than $91,070.