OB TEST 1 PRACTICE QUESTINS AND ANSWERS

OB TEST 1 PRACTICE
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NCLEX-Style Questions: Fetal Development vi vi vi




1.

The nurse explains to a client that fertilization typically occurs in which part of the female reprod
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uctive system?
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A. Uterus
B. Cervix
C. Ampulla of the fallopian tube vi vi vi vi


D. Ovarian follicle vi




Answer: C. Ampulla of the fallopian tubevi vi vi vi vi vi


Rationale: Fertilization usually occurs in the outer third (ampullary portion) of the fallopian tub
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e, approximately 24 hours after ovulation.
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2.

Implantation of the fertilized ovum normally occurs how many days after fertilization?
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A. 1–3 days vi


B. 6–10 days vi


C. 14–21 days vi


D. 3–4 weeks vi




Answer: B. 6–10 days vi vi vi


Rationale: Nidation (implantation) occurs 6 to 10 days post-
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fertilization when the blastocyst burrows into the endometrium of the uterine wall.
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3.

Which structure is responsible for early transfer of nutrients to the developing embryo before the
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placenta forms? vi




A. Amnion
B. Yolk sac vi




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, C. Chorion
D. Wharton’s jelly vi




Answer: B. Yolk sac vi vi vi


Rationale: The yolk sac develops 8–
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9 days after conception and provides nutrients during the second and third weeks of gestation bef
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ore the placenta is fully functional.
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4.

Which finding would the nurse expect if a client has oligohydramnios?
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A. Amniotic fluid volume greater than 2000 mL
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B. Amniotic fluid less than 500 mL vi vi vi vi vi


C. Fetal overgrowth vi


D. Premature rupture of membranes vi vi vi




Answer: B. Amniotic fluid less than 500 mL
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Rationale: Oligohydramnios is defined as amniotic fluid volume <500 mL, which may indicate r
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enal anomalies or placental insufficiency.
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5.

The amniotic fluid serves which primary function during pregnancy?
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A. Prevents maternal infection vi vi


B. Promotes fetal growth and movement vi vi vi vi


C. Maintains maternal body temperature vi vi vi


D. Stimulates uterine contractions vi vi




Answer: B. Promotes fetal growth and movement
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Rationale: Amniotic fluid cushions the fetus, allows free movement, maintains temperature, and
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prevents adherence of the amnion to the embryo.
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6.

The umbilical cord normally contains which of the following vessels?
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A. Two veins and one artery
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B. One vein and one artery
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