PNR 308 PRENATAL EXAM 2025/2026
QUESTIONS AND ANSWERS 100% PASS.
What is the average duration of a term pregnancy? - ANS 40 weeks
How is a term pregnancy divided? - ANS Into three 13-week parts called trimesters
What is fertilization? - ANS The union of an egg and sperm to form a zygote
Where does fertilization typically occur? - ANS In the outer third of the fallopian tube, near
the ovary
What is the zygote? - ANS The cell formed by the union of egg and sperm
Where does the zygote usually implant? - ANS In the upper section of the posterior uterine
wall
What occurs during cell differentiation? - ANS Cells begin to develop special functions after
implantation
What structures develop from the zygote? - ANS The chorion, amnion, yolk sac, and primary
germ layers
What is the function of the amnion? - ANS To surround and protect the embryo
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, What does the chorion form with the amnion? - ANS The amniotic sac filled with fluid
What is the volume of amniotic fluid at 10 weeks? - ANS 30 mls
What is the volume of amniotic fluid at 20 weeks? - ANS 350 mls
How much amniotic fluid is present at 37 weeks? - ANS About 1000 ml
What are the functions of amniotic fluid? - ANS Maintains temperature, prevents adhesion,
allows growth, provides buoyancy, and cushions the fetus
What is the umbilical cord's role? - ANS It serves as the lifeline between the mother and fetus
What do the two arteries in the umbilical cord do? - ANS Carry blood away from the fetus
What is amniotic band syndrome? - ANS A condition that can occur when the amniotic sac
adheres to fetal skin
What are the presumptive signs of pregnancy? - ANS Signs that suggest pregnancy but are
not definitive
What are probable signs of pregnancy? - ANS Signs that are more likely to indicate pregnancy
but still not definitive
What are positive signs of pregnancy? - ANS Signs that confirm pregnancy, such as fetal
heartbeat
What physiological changes occur during pregnancy? - ANS Changes include hormonal shifts,
increased blood volume, and changes in body systems
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
QUESTIONS AND ANSWERS 100% PASS.
What is the average duration of a term pregnancy? - ANS 40 weeks
How is a term pregnancy divided? - ANS Into three 13-week parts called trimesters
What is fertilization? - ANS The union of an egg and sperm to form a zygote
Where does fertilization typically occur? - ANS In the outer third of the fallopian tube, near
the ovary
What is the zygote? - ANS The cell formed by the union of egg and sperm
Where does the zygote usually implant? - ANS In the upper section of the posterior uterine
wall
What occurs during cell differentiation? - ANS Cells begin to develop special functions after
implantation
What structures develop from the zygote? - ANS The chorion, amnion, yolk sac, and primary
germ layers
What is the function of the amnion? - ANS To surround and protect the embryo
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, What does the chorion form with the amnion? - ANS The amniotic sac filled with fluid
What is the volume of amniotic fluid at 10 weeks? - ANS 30 mls
What is the volume of amniotic fluid at 20 weeks? - ANS 350 mls
How much amniotic fluid is present at 37 weeks? - ANS About 1000 ml
What are the functions of amniotic fluid? - ANS Maintains temperature, prevents adhesion,
allows growth, provides buoyancy, and cushions the fetus
What is the umbilical cord's role? - ANS It serves as the lifeline between the mother and fetus
What do the two arteries in the umbilical cord do? - ANS Carry blood away from the fetus
What is amniotic band syndrome? - ANS A condition that can occur when the amniotic sac
adheres to fetal skin
What are the presumptive signs of pregnancy? - ANS Signs that suggest pregnancy but are
not definitive
What are probable signs of pregnancy? - ANS Signs that are more likely to indicate pregnancy
but still not definitive
What are positive signs of pregnancy? - ANS Signs that confirm pregnancy, such as fetal
heartbeat
What physiological changes occur during pregnancy? - ANS Changes include hormonal shifts,
increased blood volume, and changes in body systems
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
