Study Guide 1 Phases of Labor

-4 stages of labor-know defs and durations -2nd stage of labor (decent) know what happens during this stage -diff phases of labor, latent, transitional , etc -Know which emotion lightly occurs in stage 1 during transition phase- grrr -finding of a patient who is crowning -know therapeutic communication with patient in transitional phase of labor/what should nurse tell partner -understand second stage of labor, know what nurse encourages patient to do during this stage

Phases of Labor * During the latent phase, there is more progress in effacement of the cervix and little increase in descent. * During the active phase & transition phase, there is more rapid dilation of the cervix and increased rate of descent of the presenting part. Maternal pre-pregnancy overweight and obesity can cause the active phase of labor to be longer than for women of normal weight; specifically arrest of dilation can occur. 1st Stage * Considered to last from the onset of regular uterine contractions to full effacement and dilation of the cervix. Commonly the onset of labor is difficult to establish because women may be admitted to the labor unit just before birth, and the beginning of labor may only be an estimate. The first stage is longer than the second and third stages combined. Great variability is the rule. Parity has a strong effect on the duration of first stage labor. Full dilation may occur in less than 1 hour in some multiparous pregnancies. In first-time pregnancy, complete dilation of the cervix can take 20 hours or more. Variations may