MCN 273 OB PRACTICE Q EXAM1QUESTIONS &
ANSWERS
An expectant father asks the nurse, Which part of the mature sperm contains the male
chromosomes? What is the best 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 -c. The head of the sperm
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 -c. Two arteries and one vein
Which is the purpose of the ovums 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 -a. Prevents
multiple sperm from fertilizing the ovum
The nurse is explaining the function of the placenta to a pregnant client. Which
statement indicates to the nurse the need for further client teaching?
a. My baby gets oxygen from the placenta.
b. The placenta functions to help excrete waste products.
c. The nourishment that I take in passes through the placenta.
d. The placenta helps maintain a stable temperature for my baby - Answer -d. The
placenta helps maintain a stable temperature for my baby
The nurse is assessing a newborn immediately after birth. After assigning the first Apgar
score of 9, the nurse notes two vessels in its umbilical cord. What is the nurses next
action?
a. Assess for other abnormalities of the infant.
b. Note the assessment finding in the infants chart.
c. Notify the health care provider of the assessment finding.
, d. Call for the neonatal resuscitation team to attend the infant immediately. - Answer -a.
Assess for other abnormalities of the infant. - The initial Apgar score is 9, indicating no
signs of distress or need of resuscitation.
A pregnant client asks the nurse how her baby gets oxygen to breathe. What is the
nurses best response?
a. Oxygen-rich blood is delivered through the umbilical vein to the baby.
b. Take lots of deep breaths because the baby gets all of its oxygen from you.
c. You dont need to be concerned about your baby getting enough oxygen.
d. The babys lungs are not mature enough to actually breathe, so dont worry. - Answer
-a. Oxygen-rich blood is delivered through the umbilical vein to the baby.
Which physical characteristics decrease as the fetus nears term? (Select all that apply.)
a. Vernix caseosa
b. Lanugo
c. Port wine stain
d. Brown fat - Answer -a. Vernix caseosa
b. Lanugo
Along with gas exchange and nutrient transfer, the placenta produces many hormones
necessary for normal pregnancy, including which of the following? (Select all that
apply.)
a. Insulin
b. Estrogen
c. Progesterone
d. Testosterone
e. Human chorionic gonadotropin (hCG) - Answer -b. Estrogen
c. Progesterone
d. Testosterone
The nurse is explaining the process of cell division during the preembryonic period to a
group of nursing students. Which describes 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 -d. Solid ball
composed of the first cells formed after fertilization
An expectant parent says to the nurse, When my sisters baby was born, it was covered
in a cheeselike 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.
ANSWERS
An expectant father asks the nurse, Which part of the mature sperm contains the male
chromosomes? What is the best 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 -c. The head of the sperm
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 -c. Two arteries and one vein
Which is the purpose of the ovums 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 -a. Prevents
multiple sperm from fertilizing the ovum
The nurse is explaining the function of the placenta to a pregnant client. Which
statement indicates to the nurse the need for further client teaching?
a. My baby gets oxygen from the placenta.
b. The placenta functions to help excrete waste products.
c. The nourishment that I take in passes through the placenta.
d. The placenta helps maintain a stable temperature for my baby - Answer -d. The
placenta helps maintain a stable temperature for my baby
The nurse is assessing a newborn immediately after birth. After assigning the first Apgar
score of 9, the nurse notes two vessels in its umbilical cord. What is the nurses next
action?
a. Assess for other abnormalities of the infant.
b. Note the assessment finding in the infants chart.
c. Notify the health care provider of the assessment finding.
, d. Call for the neonatal resuscitation team to attend the infant immediately. - Answer -a.
Assess for other abnormalities of the infant. - The initial Apgar score is 9, indicating no
signs of distress or need of resuscitation.
A pregnant client asks the nurse how her baby gets oxygen to breathe. What is the
nurses best response?
a. Oxygen-rich blood is delivered through the umbilical vein to the baby.
b. Take lots of deep breaths because the baby gets all of its oxygen from you.
c. You dont need to be concerned about your baby getting enough oxygen.
d. The babys lungs are not mature enough to actually breathe, so dont worry. - Answer
-a. Oxygen-rich blood is delivered through the umbilical vein to the baby.
Which physical characteristics decrease as the fetus nears term? (Select all that apply.)
a. Vernix caseosa
b. Lanugo
c. Port wine stain
d. Brown fat - Answer -a. Vernix caseosa
b. Lanugo
Along with gas exchange and nutrient transfer, the placenta produces many hormones
necessary for normal pregnancy, including which of the following? (Select all that
apply.)
a. Insulin
b. Estrogen
c. Progesterone
d. Testosterone
e. Human chorionic gonadotropin (hCG) - Answer -b. Estrogen
c. Progesterone
d. Testosterone
The nurse is explaining the process of cell division during the preembryonic period to a
group of nursing students. Which describes 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 -d. Solid ball
composed of the first cells formed after fertilization
An expectant parent says to the nurse, When my sisters baby was born, it was covered
in a cheeselike 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.
