OB Final Exam Nclex Questions With Correct Answers
4 views 0 purchase
Course
NCLEX
Institution
NCLEX
OB Final Exam Nclex Questions With
Correct Answers
An expectant father asks the nurse, "Which part of the mature sperm contains the male
chromosome?" What is the correct response by the nurse?
a. X-bearing sperm
b. The tail of the sperm
c. The head of the sperm
d. The middle portion of the s...
OB Final Exam Nclex Questions With
Correct Answers
An expectant father asks the nurse, "Which part of the mature sperm contains the male
chromosome?" What is the correct response by the nurse?
a. X-bearing sperm
b. The tail of the sperm
c. The head of the sperm
d. The middle portion of the sperm - answer✔✔ANS: C
The head of the sperm contains the male chromosomes that will join the chromosomes of the
ovum. If an X-bearing sperm fertilizes the ovum, the baby will be female. The tail of the sperm
helps propel the sperm toward the ovum. The middle portion of the sperm supplies energy for the
tail's whip-like action.
One of the assessments performed in the birth room is checking the umbilical cord for blood
vessels. Which finding is considered to be within normal limits?
a. One artery and one vein
b. Two veins and one artery
c. Two arteries and one vein
d. Two arteries and two veins - answer✔✔ANS: C
The umbilical cord contains two arteries and one vein to transport blood between the fetus and
the placenta. Any option other than two arteries and one vein is considered abnormal and
requires further assessment. Two veins and one artery is abnormal and may indicate an anomaly.
Two arteries instead is a normal finding; this infant would require further assessment for
anomalies due to the finding of two veins.
What is the purpose of the ovum's zona pellucida?
a. Prevents multiple sperm from fertilizing the ovum
b. Stimulates the ovum to begin mitotic cell division
c. Allows the 46 chromosomes from each gamete to merge
d. Makes a pathway for more than one sperm to reach the ovum - answer✔✔ANS: A
Fertilization causes the zona pellucida to change its chemical composition so that multiple sperm
cannot fertilize the ovum. Mitotic cell division begins when the nuclei of the sperm and ovum
unite. Each gamete (sperm and ovum) has only 23 chromosomes; there will be 46 chromosomes
when they merge. Once sperm has entered the ovum, the zona pellucida changes to prevent other
sperm from entering.
The nurse is explaining the process of cell division during the preembryonic period to a group of
nursing students. Which statement best describes the characteristics of the morula?
a. Fertilized ovum before mitosis begins
b. Double layer of cells that becomes the placenta
c. Flattened, disk-shaped layer of cells within a fluid-filled sphere
d. Solid ball composed of the first cells formed after fertilization - answer✔✔ANS: D
The morula is so named because it resembles a mulberry. It is a solid ball of 12 to 16 cells that
develops after fertilization. The fertilized ovum is called the zygote. The placenta is formed from
two layers of cells—the trophoblast, which is the other portion of the fertilized ovum, and the
decidua, which is the portion of the uterus where implantation occurs. The flattened, disk-shaped
layer of cells is the embryonic disk; it will develop into the body.
The upper uterus is the best place for the fertilized ovum to implant due to which anatomical
adaptation?
a. Maternal blood flow is lower.
b. Placenta attaches most firmly.
c. Uterine endometrium is softer.
d. Developing baby is best nourished - answer✔✔ANS: D
The uterine fundus is richly supplied with blood and has the thickest endometrium, both of which
promote optimum nourishment of the fetus. The blood supply is rich in the fundus, which allows
a. intestines need this time to grow until week 15.
b. nutrient content of the blood is higher in this location.
c. abdomen is too small to contain all the organs while they are developing.
d. umbilical cord is much larger at this time than it will be at the end of pregnancy. -
answer✔✔ANS: C
The abdominal contents grow more rapidly than the abdominal cavity, so part of their
development takes place in the umbilical cord. By 10 weeks, the abdomen is large enough to
contain them. The intestines remain within the umbilical cord only until about week 10. Blood
supply is adequate in all areas; intestines stay in the umbilical cord for about 10 weeks because
they are growing faster than the abdomen. Intestines begin their development within the
umbilical cord, but only because the liver and kidneys occupy most of the abdominal cavity, not
because of the size of the umbilical cord.
A patient who is 16 weeks pregnant with her first baby asks how long it will be before she feels
the baby move. Which is the nurse's best answer?
a. "You should have felt the baby move by now."
b. "The baby is moving, but you can't feel it yet."
c. "Some babies are quiet and you don't feel them move."
d. "Within the next month you should start to feel fluttering sensations." - answer✔✔ANS: D
Maternal perception of fetal movement (quickening) usually begins between 17 and 20 weeks
after conception. Because this is her first pregnancy, movement is felt toward the later part of the
17 to 20 weeks. "The baby is moving, but you can't feel it yet" may be alarming to the woman.
"Some babies are quiet and you don't feel them move" is a true statement; the fetus' movements
are not strong enough to be felt until 17 to 20 weeks; however, this statement does not answer
the woman's concern. Fetal movement should be felt between 17 and 20 weeks; if movement is
not perceptible by the end of that time, further assessment will be necessary.
Which statement best describes the changes that occur during the fetal period of development?
d. Development of placental oxygen-carbon dioxide exchange - answer✔✔ANS: A
During the fetal period, the body systems grow in size and mature in function to allow
independent existence after birth. Basic organ systems are developed during the embryonic
period. The organs are always at risk for damage from external sources; however, the older the
fetus, the more resistant will be the organs. The greatest risk is when the organs are developing.
The placental system is complete by week 12, but that is not the best description of the fetal
period.
An expectant mother says to the nurse, "When my sister's baby was born, it was covered in a
cheese-like coating. What is the purpose of this coating?" The correct response by the nurse is to
explain that the purpose of vernix caseosa is to
a. regulate fetal temperature.
b. protect the fetal skin from amniotic fluid.
c. promote normal peripheral nervous system development.
d. allow the transport of oxygen and nutrients across the amnion - answer✔✔ANS: B
Prolonged exposure to amniotic fluid during the fetal period could result in breakdown of the
skin without the protection of the vernix caseosa. The amniotic fluid aids in maintaining fetal
temperature. Normal peripheral nervous system development is dependent on the nutritional
intake of the mother. The amnion is the inner membrane that surrounds the fetus. It is not
involved in the oxygen and nutrient exchange.
An expectant mother, diagnosed with oligohydramnios, asks the nurse what this condition means
for the baby. Which statement should the nurse provide for the patient?
a. Oligohydramnios can cause poor fetal lung development.
b. Oligohydramnios means that the fetus is excreting excessive urine.
c. Oligohydramnios could mean that the fetus has a gastrointestinal blockage.
d. Oligohydramnios is associated with fetal central nervous system abnormalities -
answer✔✔ANS: A
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Thebright. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.49. You're not tied to anything after your purchase.
