MCN 273 OB PRACTICE Q EXAM1 WITH
CORRECT SOLUTIONS
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 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.
c. promote normal peripheral nervous system development.
d. allow the transport of oxygen and nutrients across the amnion. - ANSWER-b. protect
the fetal skin from amniotic fluid.
, An expectant client, diagnosed with oligohydramnios, asks the nurse about what this
condition means for the baby. Which statement should the nurse give to the client?
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-a. Oligohydramnios can cause poor fetal lung development.
A nurse is conducting prenatal education classes for a group of parents. Which
purposes should the nurse explain that are performed by the amniotic fluid? (Select all
that apply.)
a. Cushions the fetus
b. Protects the skin of the fetus
c. Provides nourishment for the fetus
d. Allows for buoyancy for fetal movement
e. Maintains a stable temperature for the fetus - ANSWER-a. Cushions the fetus
d. Allows for buoyancy for fetal movement
e. Maintains a stable temperature for the fetus
Which newborn reflex is elicited by stroking the lateral sole of the infants foot from the
heel to the ball of the foot?
a. Babinski
b. Stepping
c. Tonic neck
d. Plantar grasp - ANSWER-a. Babinski
Infants who develop cephalohematoma are at increased risk for:
a. infection.
b. jaundice.
c. caput succedaneum.
d. erythema toxicum. - ANSWER-b. jaundice.
A maculopapular rash with a red base and a small white papule in the center is:
a. milia.
b. Mongolian spots.
c. erythema toxicum.
d. caf-au-lait spots. - ANSWER-c. erythema toxicum.
Which medication would the nurse anticipate administering to the labor client who is
delivering a premature infant?
a. Phytonadione (AquaMEPHYTON)
b. Betamethasone
CORRECT SOLUTIONS
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 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.
c. promote normal peripheral nervous system development.
d. allow the transport of oxygen and nutrients across the amnion. - ANSWER-b. protect
the fetal skin from amniotic fluid.
, An expectant client, diagnosed with oligohydramnios, asks the nurse about what this
condition means for the baby. Which statement should the nurse give to the client?
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-a. Oligohydramnios can cause poor fetal lung development.
A nurse is conducting prenatal education classes for a group of parents. Which
purposes should the nurse explain that are performed by the amniotic fluid? (Select all
that apply.)
a. Cushions the fetus
b. Protects the skin of the fetus
c. Provides nourishment for the fetus
d. Allows for buoyancy for fetal movement
e. Maintains a stable temperature for the fetus - ANSWER-a. Cushions the fetus
d. Allows for buoyancy for fetal movement
e. Maintains a stable temperature for the fetus
Which newborn reflex is elicited by stroking the lateral sole of the infants foot from the
heel to the ball of the foot?
a. Babinski
b. Stepping
c. Tonic neck
d. Plantar grasp - ANSWER-a. Babinski
Infants who develop cephalohematoma are at increased risk for:
a. infection.
b. jaundice.
c. caput succedaneum.
d. erythema toxicum. - ANSWER-b. jaundice.
A maculopapular rash with a red base and a small white papule in the center is:
a. milia.
b. Mongolian spots.
c. erythema toxicum.
d. caf-au-lait spots. - ANSWER-c. erythema toxicum.
Which medication would the nurse anticipate administering to the labor client who is
delivering a premature infant?
a. Phytonadione (AquaMEPHYTON)
b. Betamethasone
