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.
Average Salary. The average annual salary of a diagnostic medical sonographer was $65,860 in May 2012. This equals out to an hourly wage of $29.02. The lowest ten percent of diagnostic sonographers earned $44,990, while the top ten percent earned over $91,070.The average annual salary of cardiovascular technologists and technicians was less than those of medical sonographers. As of May 2012, their average salary was $52,070.his equals out to an hourly wage of $29.02. The lowest ten percent of diagnostic sonographers earned $44,990, while the top ten percent earned over $91,070. The average annual salary of cardiovascular technologists and technicians was less than those of medical sonographers.