OB Final exam Nclex
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1. An expectant father asks the nurse, ANS: C
"Which part of the mature sperm The head of the sperm contains the
contains the male chromosome?" male chromosomes that will join the
What is the correct response by the chromosomes of the ovum. If an
nurse? X-bearing sperm fertilizes the ovum,
the baby will be female. The tail of the
a. X-bearing sperm sperm helps propel the sperm toward
b. The tail of the sperm the ovum. The middle portion of the
c. The head of the sperm sperm supplies energy for the tail's
d. The middle portion of the sperm whip-like action.
2. One of the assessments performed ANS: C
in the birth room is checking the The umbilical cord contains two arter-
umbilical cord for blood vessels. ies and one vein to transport blood be-
Which finding is considered to be tween the fetus and the placenta. Any
within normal limits? option other than two arteries and one
vein is considered abnormal and re-
a. One artery and one vein quires further assessment. Two veins
b. Two veins and one artery and one artery is abnormal and may
c. Two arteries and one vein indicate an anomaly. Two arteries in-
d. Two arteries and two veins stead is a normal finding; this infant
would require further assessment for
anomalies due to the finding of two
veins.
3. What is the purpose of the ovum's ANS: A
zona pellucida? Fertilization causes the zona pellu-
cida to change its chemical compo-
a. Prevents multiple sperm from sition so that multiple sperm cannot
fertilizing the ovum fertilize the ovum. Mitotic cell division
b. Stimulates the ovum to begin mi- begins when the nuclei of the sperm
totic cell division and ovum unite. Each gamete (sperm
c. Allows the 46 chromosomes and ovum) has only 23 chromosomes;
from each gamete to merge there will be 46 chromosomes when
d. Makes a pathway for more than they merge. Once sperm has entered
one sperm to reach the ovum the ovum, the zona pellucida changes
to prevent other sperm from entering.
4.
, OB Final exam Nclex
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The nurse is explaining the process ANS: D
of cell division during the preem- The morula is so named because it
bryonic period to a group of nurs- resembles a mulberry. It is a solid
ing students. Which statement best ball of 12 to 16 cells that develops
describes the characteristics of theafter fertilization. The fertilized ovum
morula? is called the zygote. The placenta is
formed from two layers of cells—the
a. Fertilized ovum before mitosis trophoblast, which is the other portion
begins of the fertilized ovum, and the decid-
b. Double layer of cells that be- ua, which is the portion of the uterus
comes the placenta where implantation occurs. The flat-
c. Flattened, disk-shaped layer of tened, disk-shaped layer of cells is the
cells within a fluid-filled sphere embryonic disk; it will develop into the
d. Solid ball composed of the first body.
cells formed after fertilization
5. The upper uterus is the best place ANS: D
for the fertilized ovum to implant The uterine fundus is richly supplied
due to which anatomical adapta- with blood and has the thickest en-
tion? dometrium, both of which promote op-
timum nourishment of the fetus. The
a. Maternal blood flow is lower. blood supply is rich in the fundus,
b. Placenta attaches most firmly. which allows for optimal nourishment
c. Uterine endometrium is softer. of the fetus. If the placenta attaches
d. Developing baby is best nour- too deeply, it does not easily detach.
ished Softness is not a concern with implan-
tation; attachment and nourishment
are the major concerns.
6. Some of the embryo's intestines re- ANS: C
main within the umbilical cord dur- The abdominal contents grow more
ing the embryonic period because rapidly than the abdominal cavity, so
the part of their development takes place
in the umbilical cord. By 10 weeks, the
a. intestines need this time to grow abdomen is large enough to contain
until week 15. them. The intestines remain within the
b. nutrient content of the blood is umbilical cord only until about week
higher in this location. 10. Blood supply is adequate in all
c. abdomen is too small to contain areas; intestines stay in the umbili-
, OB Final exam Nclex
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all the organs while they are devel- cal cord for about 10 weeks because
oping. they are growing faster than the ab-
d. umbilical cord is much larger at domen. Intestines begin their devel-
this time than it will be at the end of opment within the umbilical cord, but
pregnancy. only because the liver and kidneys oc-
cupy most of the abdominal cavity, not
because of the size of the umbilical
cord.
7. A patient who is 16 weeks pregnant ANS: D
with her first baby asks how long Maternal perception of fetal move-
it will be before she feels the baby ment (quickening) usually begins be-
move. Which is the nurse's best an- tween 17 and 20 weeks after concep-
swer? tion. Because this is her first pregnan-
cy, movement is felt toward the later
a. "You should have felt the baby part of the 17 to 20 weeks. "The baby
move by now." is moving, but you can't feel it yet" may
b. "The baby is moving, but you be alarming to the woman. "Some ba-
can't feel it yet." bies are quiet and you don't feel them
c. "Some babies are quiet and you move" is a true statement; the fetus'
don't feel them move." movements are not strong enough to
d. "Within the next month you be felt until 17 to 20 weeks; howev-
should start to feel fluttering sen- er, this statement does not answer
sations." the woman's concern. Fetal move-
ment should be felt between 17 and
20 weeks; if movement is not percep-
tible by the end of that time, further
assessment will be necessary.
8. Which statement best describes ANS: A
the changes that occur during the During the fetal period, the body sys-
fetal period of development? tems grow in size and mature in func-
tion to allow independent existence af-
a. Maturation of organ systems ter birth. Basic organ systems are de-
b. Development of basic organ sys- veloped during the embryonic period.
tems The organs are always at risk for dam-
c. Resistance of organs to damage age from external sources; however,
from external agents the older the fetus, the more resistant
will be the organs. The greatest risk is
, OB Final exam Nclex
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d. Development of placental oxy- when the organs are developing. The
gen-carbon dioxide exchange placental system is complete by week
12, but that is not the best description
of the fetal period.
9. An expectant mother says to the ANS: B
nurse, "When my sister's baby Prolonged exposure to amniotic flu-
was born, it was covered in a id during the fetal period could result
cheese-like coating. What is the in breakdown of the skin without the
purpose of this coating?" The cor- protection of the vernix caseosa. The
rect response by the nurse is to amniotic fluid aids in maintaining fetal
explain that the purpose of vernix temperature. Normal peripheral ner-
caseosa is to vous system development is depen-
dent on the nutritional intake of the
a. regulate fetal temperature. mother. The amnion is the inner mem-
b. protect the fetal skin from amni- brane that surrounds the fetus. It is
otic fluid. not involved in the oxygen and nutrient
c. promote normal peripheral ner- exchange.
vous system development.
d. allow the transport of oxygen
and nutrients across the amnion
10. An expectant mother, diagnosed ANS: A
with oligohydramnios, asks the Because an abnormally small amount
nurse what this condition means of amniotic fluid restricts normal lung
for the baby. Which statement development, the fetus may have poor
should the nurse provide for the pa- fetal lung development. Oligohydram-
tient? nios may be caused by a decrease
in urine secretion. Excessive amniotic
a. Oligohydramnios can cause poor fluid production may occur when the
fetal lung development. gastrointestinal tract prevents normal
b. Oligohydramnios means that the ingestion of amniotic fluid. Excessive
fetus is excreting excessive urine. amniotic fluid production may occur
c. Oligohydramnios could mean when the fetus has a central nervous
that the fetus has a gastrointestinal system abnormality.
blockage.
d. Oligohydramnios is associated
with fetal central nervous system
abnormalities
Study online at https://quizlet.com/_9vlxbj
1. An expectant father asks the nurse, ANS: C
"Which part of the mature sperm The head of the sperm contains the
contains the male chromosome?" male chromosomes that will join the
What is the correct response by the chromosomes of the ovum. If an
nurse? X-bearing sperm fertilizes the ovum,
the baby will be female. The tail of the
a. X-bearing sperm sperm helps propel the sperm toward
b. The tail of the sperm the ovum. The middle portion of the
c. The head of the sperm sperm supplies energy for the tail's
d. The middle portion of the sperm whip-like action.
2. One of the assessments performed ANS: C
in the birth room is checking the The umbilical cord contains two arter-
umbilical cord for blood vessels. ies and one vein to transport blood be-
Which finding is considered to be tween the fetus and the placenta. Any
within normal limits? option other than two arteries and one
vein is considered abnormal and re-
a. One artery and one vein quires further assessment. Two veins
b. Two veins and one artery and one artery is abnormal and may
c. Two arteries and one vein indicate an anomaly. Two arteries in-
d. Two arteries and two veins stead is a normal finding; this infant
would require further assessment for
anomalies due to the finding of two
veins.
3. What is the purpose of the ovum's ANS: A
zona pellucida? Fertilization causes the zona pellu-
cida to change its chemical compo-
a. Prevents multiple sperm from sition so that multiple sperm cannot
fertilizing the ovum fertilize the ovum. Mitotic cell division
b. Stimulates the ovum to begin mi- begins when the nuclei of the sperm
totic cell division and ovum unite. Each gamete (sperm
c. Allows the 46 chromosomes and ovum) has only 23 chromosomes;
from each gamete to merge there will be 46 chromosomes when
d. Makes a pathway for more than they merge. Once sperm has entered
one sperm to reach the ovum the ovum, the zona pellucida changes
to prevent other sperm from entering.
4.
, OB Final exam Nclex
Study online at https://quizlet.com/_9vlxbj
The nurse is explaining the process ANS: D
of cell division during the preem- The morula is so named because it
bryonic period to a group of nurs- resembles a mulberry. It is a solid
ing students. Which statement best ball of 12 to 16 cells that develops
describes the characteristics of theafter fertilization. The fertilized ovum
morula? is called the zygote. The placenta is
formed from two layers of cells—the
a. Fertilized ovum before mitosis trophoblast, which is the other portion
begins of the fertilized ovum, and the decid-
b. Double layer of cells that be- ua, which is the portion of the uterus
comes the placenta where implantation occurs. The flat-
c. Flattened, disk-shaped layer of tened, disk-shaped layer of cells is the
cells within a fluid-filled sphere embryonic disk; it will develop into the
d. Solid ball composed of the first body.
cells formed after fertilization
5. The upper uterus is the best place ANS: D
for the fertilized ovum to implant The uterine fundus is richly supplied
due to which anatomical adapta- with blood and has the thickest en-
tion? dometrium, both of which promote op-
timum nourishment of the fetus. The
a. Maternal blood flow is lower. blood supply is rich in the fundus,
b. Placenta attaches most firmly. which allows for optimal nourishment
c. Uterine endometrium is softer. of the fetus. If the placenta attaches
d. Developing baby is best nour- too deeply, it does not easily detach.
ished Softness is not a concern with implan-
tation; attachment and nourishment
are the major concerns.
6. Some of the embryo's intestines re- ANS: C
main within the umbilical cord dur- The abdominal contents grow more
ing the embryonic period because rapidly than the abdominal cavity, so
the part of their development takes place
in the umbilical cord. By 10 weeks, the
a. intestines need this time to grow abdomen is large enough to contain
until week 15. them. The intestines remain within the
b. nutrient content of the blood is umbilical cord only until about week
higher in this location. 10. Blood supply is adequate in all
c. abdomen is too small to contain areas; intestines stay in the umbili-
, OB Final exam Nclex
Study online at https://quizlet.com/_9vlxbj
all the organs while they are devel- cal cord for about 10 weeks because
oping. they are growing faster than the ab-
d. umbilical cord is much larger at domen. Intestines begin their devel-
this time than it will be at the end of opment within the umbilical cord, but
pregnancy. only because the liver and kidneys oc-
cupy most of the abdominal cavity, not
because of the size of the umbilical
cord.
7. A patient who is 16 weeks pregnant ANS: D
with her first baby asks how long Maternal perception of fetal move-
it will be before she feels the baby ment (quickening) usually begins be-
move. Which is the nurse's best an- tween 17 and 20 weeks after concep-
swer? tion. Because this is her first pregnan-
cy, movement is felt toward the later
a. "You should have felt the baby part of the 17 to 20 weeks. "The baby
move by now." is moving, but you can't feel it yet" may
b. "The baby is moving, but you be alarming to the woman. "Some ba-
can't feel it yet." bies are quiet and you don't feel them
c. "Some babies are quiet and you move" is a true statement; the fetus'
don't feel them move." movements are not strong enough to
d. "Within the next month you be felt until 17 to 20 weeks; howev-
should start to feel fluttering sen- er, this statement does not answer
sations." the woman's concern. Fetal move-
ment should be felt between 17 and
20 weeks; if movement is not percep-
tible by the end of that time, further
assessment will be necessary.
8. Which statement best describes ANS: A
the changes that occur during the During the fetal period, the body sys-
fetal period of development? tems grow in size and mature in func-
tion to allow independent existence af-
a. Maturation of organ systems ter birth. Basic organ systems are de-
b. Development of basic organ sys- veloped during the embryonic period.
tems The organs are always at risk for dam-
c. Resistance of organs to damage age from external sources; however,
from external agents the older the fetus, the more resistant
will be the organs. The greatest risk is
, OB Final exam Nclex
Study online at https://quizlet.com/_9vlxbj
d. Development of placental oxy- when the organs are developing. The
gen-carbon dioxide exchange placental system is complete by week
12, but that is not the best description
of the fetal period.
9. An expectant mother says to the ANS: B
nurse, "When my sister's baby Prolonged exposure to amniotic flu-
was born, it was covered in a id during the fetal period could result
cheese-like coating. What is the in breakdown of the skin without the
purpose of this coating?" The cor- protection of the vernix caseosa. The
rect response by the nurse is to amniotic fluid aids in maintaining fetal
explain that the purpose of vernix temperature. Normal peripheral ner-
caseosa is to vous system development is depen-
dent on the nutritional intake of the
a. regulate fetal temperature. mother. The amnion is the inner mem-
b. protect the fetal skin from amni- brane that surrounds the fetus. It is
otic fluid. not involved in the oxygen and nutrient
c. promote normal peripheral ner- exchange.
vous system development.
d. allow the transport of oxygen
and nutrients across the amnion
10. An expectant mother, diagnosed ANS: A
with oligohydramnios, asks the Because an abnormally small amount
nurse what this condition means of amniotic fluid restricts normal lung
for the baby. Which statement development, the fetus may have poor
should the nurse provide for the pa- fetal lung development. Oligohydram-
tient? nios may be caused by a decrease
in urine secretion. Excessive amniotic
a. Oligohydramnios can cause poor fluid production may occur when the
fetal lung development. gastrointestinal tract prevents normal
b. Oligohydramnios means that the ingestion of amniotic fluid. Excessive
fetus is excreting excessive urine. amniotic fluid production may occur
c. Oligohydramnios could mean when the fetus has a central nervous
that the fetus has a gastrointestinal system abnormality.
blockage.
d. Oligohydramnios is associated
with fetal central nervous system
abnormalities
