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.
In its 2010 survey, the average yearly income of sonographers was $68,821 or $33.09 per hour. The ASRT provides a further breakdown by position, with staff sonographers earning $31.85 per hour, and supervisors averaging $38.29 per hour. Experience is also a factor. Sonographers with two years' experience or less averaged $26.89 per hour, while those with six to 10 years' experience earned $29.73 per hour.