Which stage of labor varies the most in length?
1. First
2. Second
3. Third
4. Fourth
1
1. Correct. The first stage of labor is considered to last from the onset of regular uterine contractions to full dilation of the cervix. The first stage is much longer than the second and third combined. In a first-time pregnancy, the first stage of labor can take up to 20 hours.
2. Incorrect. The second stage of labor lasts from the time the cervix is fully dilated to the birth of the fetus. The average length for a multiparous woman is 20 minutes, and 50 minutes for a nulliparous woman.
3. Incorrect. The third stage of labor lasts from the birth of the fetus until the placenta is de-livered. The duration of the third stage of labor may be as short as 3 minutes or up to 1 hour.
4. Incorrect. The fourth stage of labor, recovery, lasts about 2 hours after the delivery of the placenta.
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