The nurse is preparing to teach a prenatal class about fetal circulation. Which statements would be included in the teaching plan? Select all that apply.
A. "The ductus arteriosus allows blood to bypass the fetal lungs."
B. "One vein carries oxygenated blood from the placenta to the fetus."
C. "...
The nurse is preparing to teach a prenatal class about fetal circulation. Which statements would be
included in the teaching plan? Select all that apply.
A. "The ductus arteriosus allows blood to bypass the fetal lungs."
B. "One vein carries oxygenated blood from the placenta to the fetus."
C. "The normal fetal heartbeat range is 160 to 180 beats per minute in pregnancy."
D. "Two arteries carry deoxygenated blood and waste products away from the fetus to the placenta."
E. "Two veins carry blood that is high in carbon dioxide and other waste products away from the fetus to
the placenta." Answer: A, B, D
A. "The ductus arteriosus allows blood to bypass the fetal lungs."
B. "One vein carries oxygenated blood from the placenta to the fetus."
D. "Two arteries carry deoxygenated blood and waste products away from the fetus to the placenta."
The ductus arteriosus is a unique fetal circulation structure that allows blood to bypass the
nonfunctioning fetal lungs. Oxygenated blood is transported to the fetus by one umbilical vein. The
normal fetal heartbeat range is considered to be 110 to 160 beats per minute. Two arteries carry
deoxygenated blood and waste products from the fetus, and one umbilical vein carries oxygenated
blood and provides oxygen and nutrients to the fetus. Blood pumped by the embryo's heart leaves the
embryo through two umbilical arteries.
The nursing instructor teaches a group of students about fetal circulation and then asks a student to
describe fetal circulation, specically the ductus venosus. Which statement by the student indicates an
understanding of the ductus venosus?
A. "It connects the pulmonary artery to the aorta."
B. "It is an opening between the right and left atria."
C. "It connects the umbilical vein to the inferior vena cava."
,D. "It connects the umbilical artery to the inferior vena cava." Answer: C. "It connects the umbilical
vein to the inferior vena cava."
The ductus venosus connects the umbilical vein to the inferior vena cava. The foramen ovale is a
temporary opening between the right and left atria. The ductus arteriosus joins the aorta and the
pulmonary artery.
A pregnant client tells the clinic nurse that they want to know the sex of the baby as soon as it can be
determined. The nurse plans to inform the client that they will be able to find out the sex at 16 weeks'
gestation because of which factor?
A. The appearance of the fetal external genitalia.
B. The beginning of differentiation in the fetal groin.
C. The fetal testes are descended into the scrotal sac.
D. The internal differences in different genders become apparent. Answer: A. The appearance of the
fetal external genitalia.
Between weeks 16 and 20, the external genitalia of the fetus have developed to such a degree that the
sex of the fetus can be determined visually. Differentiation of the external genitalia occurs at the end of
the ninth week. Testes begin to descend into the scrotal sac at the end of the 38th week. Internal
differences in the genders occur at the end of the seventh week.
The nurse is performing an assessment on a client who is at 38 weeks' gestation and notes that the fetal
heart rate (FHR) is 174 beats per minute. On the basis of this finding, what is the priority nursing action?
A. Document the finding.
B. Notify the obstetrician (OB).
C. Check the mother's heart rate.
D. Tell the client that the fetal heart rate is normal. Answer: B. Notify the obstetrician (OB).
The FHR depends on gestational age and ranges from 160 to 170 beats per minute in the first trimester
but slows with fetal growth to 110 to 160 beats per minute. If the FHR is less than 110 beats per minute
,or more than 160 beats per minute with the uterus at rest, the fetus may be in distress. Because the FHR
is increased from the reference range, the nurse would notify the OB. Options 3 and 4 are inappropriate
actions based on the information in the question. Although the nurse documents the findings, based on
the information in the question, the OB needs to be notified.
The nurse is conducting a prenatal class on the re- productive system. When a client in the class asks
why the fertilized ovum stays in the fallopian tube for 3 days, what is the nurse's best response?
A. "It promotes the fertilized ovum's chances of survival."
B. "It promotes the fertilized ovum's exposure to estrogen and progesterone."
C. "It promotes the fertilized ovum's normal implantation in the top portion of the uterus."
D. "It promotes the fertilized ovum's exposure to luteinizing hormone and follicle-stimulating hormone."
Answer: C. "It promotes the fertilized ovum's normal implantation in the top portion of the uterus."
The tubal isthmus remains contracted until 3 days after conception to allow the fertilized ovum to
develop within the tube. This initial growth of the fertilized ovum promotes its normal implantation in
the fundal portion of the uterine corpus. Estrogen is a hormone produced by the ovarian follicles, corpus
luteum, adrenal cortex, and placenta during pregnancy. Progesterone is a hormone secreted by the
corpus luteum of the ovary, adrenal glands, and placenta dur- ing pregnancy. Luteinizing hormone and
follicle-stimulating hormone are excreted by the anterior pituitary gland. The survival of the fertilized
ovum does not depend on it staying in the fallopian tube for 3 days.
The nursing instructor asks a nursing student to explain the characteristics of the amniotic fluid. The
student responds correctly by explaining which as characteristics of amniotic fluid? Select all that apply.
A. Allows for fetal movement.
B. Surrounds, cushions, and protects the fetus.
C. Maintains the body temperature of the fetus.
D. Can be used to measure fetal kidney function.
E. Prevents large particles such as bacteria from passing to the fetus.
F. Provides an exchange of nutrients and waste products between the birthing parent and the fetus.
Answer: A. Allows for fetal movement.
B. Surrounds, cushions, and protects the fetus.
, C. Maintains the body temperature of the fetus.
D. Can be used to measure fetal kidney function.
The amniotic fluid surrounds, cushions, and protects the fetus. It allows the fetus to move freely and
maintains the body temperature of the fetus. In addition, the amniotic fluid contains urine from the
fetus and can be used to assess fetal kidney function. The placenta prevents large particles such as
bacteria from passing to the fetus and provides an exchange of nutrients and waste products between
the birthing parent and the fetus.
A couple comes to the family planning clinic and asks about sterilization procedures. Which question by
the nurse would determine whether this method of family planning would be most appropriate?
A. "Have you ever had surgery?"
B. "Do you plan to have any other children?"
C. "Do either of you have diabetes mellitus?"
D. "Do either of you have problems with high blood pressure?" Answer: B. "Do you plan to have any
other children?"
Sterilization is a method of contraception for couples who have completed their families. It should be
considered a permanent end to fertility, because reversal surgery is not always successful. The nurse
would ask the couple about their plans for having children in the future. Options 1, 3, and 4 are
unrelated to this procedure.
The nurse would plan to make which statement to a pregnant client found to have a gynecoid pelvis?
A. "Your type of pelvis has a narrow pubic arch."
B. "Your type of pelvis is the most favorable for labor and birth."
C. "Your type of pelvis is a wide pelvis, but it has a short diameter."
D. "You will need a cesarean section because this type of pelvis is not favorable for a vaginal delivery."
Answer: B. "Your type of pelvis is the most favorable for labor and birth."
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