Chapter 12: Processes of Birth
Foundations of Maternal-Newborn &
Women's Health Nursing, 7th Edition
Questions and Correct Answers
1. The nurse is explaining the physiology of uterine contractions to a group of nursing students. Which
statement best explains the maternal-fetal exchange of oxygen and waste products during a contraction?
a.
Little to no affect
b.
Increases as blood pressure decreases
c.
Diminishes as the spiral arteries are compressed
d.
Continues except when placental functions are reduced - correct answers:c.
Diminishes as the spiral arteries are compressed
The nurse is directing an unlicensed assistive personnel (UAP) to obtain maternal vital signs between
contractions. Which statement is the appropriate rationale for assessing maternal vital signs between
contractions rather than at another interval?
a.
Vital signs taken during contractions are inaccurate.
b.
During a contraction, assessing fetal heart rate is the priority.
c.
Maternal blood flow to the heart is reduced during contractions.
Maternal circulating blood volume increases temporarily during contractions.
,Uncontrolled maternal hyperventilation during labor results in
a.
metabolic acidosis.
b.
metabolic alkalosis.
c.
respiratory acidosis.
d.
respiratory alkalosis. - correct answers:d.
respiratory alkalosis.
Which mechanism of labor occurs when the largest diameter of the fetal presenting part passes the
pelvic inlet?
a.
Extension
b.
Engagement
c.
Internal rotation
d.
External rotation - correct answers:b.
Engagement
5. The laboring patient asks the nurse how the labor contractions cause the cervix to dilate. The nurse
responds that labor contractions facilitate cervical dilation by
a.
promoting blood flow to the cervix.
b.
, contracting the lower uterine segment.
c.
enlarging the internal size of the uterus.
d.
pulling the cervix over the fetus and amniotic sac. - correct answers:d.
pulling the cervix over the fetus and amniotic sac.
Pregnant patients can usually tolerate the normal blood loss associated with childbirth because of which
physiologic adaptation to pregnancy?
a.
A higher hematocrit
b.
Increased leukocytes
c.
Increased blood volume
d.
A lower fibrinogen level - correct answers:c.
Increased blood volume
The nurse is assessing the duration of a patient's labor contractions. Which method does the nurse
implement to assess the duration of labor contractions?
a.
Assess the strongest intensity of each contraction.
b.
Assess uterine relaxation between two contractions.
c.
Assess from the beginning to the end of each contraction.
d.
Assess from the beginning of one contraction to the beginning of the next. - correct answers:c.
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