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.
Sonographer salary in USA. An average hourly wage for a sonographer in the United States ranges from between $18.77 â $37.98 per hour which gradually increases to around $24.43 â $60.55 overtime.An average annual salary for a sonographer ranges from between $37,941 â $79,837 per annum and a yearly bonus of around $1,932 will be included.n average hourly wage for a sonographer in the United States ranges from between $18.77 â $37.98 per hour which gradually increases to around $24.43 â $60.55 overtime. An average annual salary for a sonographer ranges from between $37,941 â $79,837 per annum and a yearly bonus of around $1,932 will be included.