to pregnancy(A+ Guaranteed Answers)
A women who is 25 weeks pregnant asks the nurse what her fetus looks like. What does the
nurse explain is one physical characteristic present in a 25-week-old fetus?
a. Lanugo covering the body
b. constant motion
c. skin that is pink and smooth
d. eyes that are closed correct answersa. Lanugo (fine hair) covering the body
Where is the usual location for implantation of the zygote?
a. upper section of the posterior uterine wall
b. lower portion of the uterus near the cervical os
c. inner third of the fallopian tube near the uterus
d. lateral aspect of the uterine wall correct answersa. upper section of the posterior uterine wall
During an ultrasound, two amnions and two placentas are observed. What will be the most likely
result of this pregnancy?
a. dizygotic twins
b. monozygotic twins
c. conjoined twins
d. high birth-weight twins correct answersa. dizygotic twins
What is the total number of chromosomes contained in. mature sperm or ovum?
a. 22
b. 23
c. 44
d. 46 correct answersb. 23
A pregnant woman states, "My husband hopes I will give him a boy because we have three
girls." What will the nurse explain to this woman?
a. the sex chromosome of the fertilized ovum determines the gender of the child
b. when the sperm and ovum are united, there is a 75% chance the child will be a girl
c. when the pH of the female reproductive tract is acidic, the child will be a girl
d. if a sperm carrying a Y chromosome fertilizes an ovum, then a boy is produced correct
answersd. if a sperm carrying a Y chromosome fertilizes an ovum, then a boy is produced
What is the most common site for fertilization?
a. lower segment of the uterus
b. outer third of the fallopian tube near the ovary
c. upper portion of the uterus
d. area of the fallopian tube farthest from the ovary correct answersb. outer third of the fallopian
tube near the ovary
The embryo is termed a fetus at which stage of the prenatal development?
, a. 2 weeks
b. 4 weeks
c. 9 weeks
d. 16 weeks correct answersc. 9 weeks
What is the embryonic membrane that contains fingerlike projections on its surface, which attach
to the uterine wall?
a. amnion
b. yolk sac
c. chorion
d. decidua basalis correct answersc. chorion
Which hormone is responsible for converting the endometrium into the decimal cells for
implantation?
a. estrogen
b. human chorionic gonadotropin
c. human placental lactogen
d. progesterone correct answersd. progesterone
A patient asks the nurse when her infants heart will begin to pump blood. What will the nurse
reply?
a. by the end of week 3
b. beginning in week 8
c. at the end of week 16
d. beginning in week 24 correct answersa. by the end of week 3
At what point in prenatal development do the lungs begin to produce surfactant?
a. 17 weeks
b. 20 weeks
c. 25 weeks
d. 30 weeks correct answersc. 25 weeks
A women missed her menstrual period 1 week ago and has come to the doctors office for a
pregnancy test. Which hormone is measured in pregnancy tests?
a. progesterone
b. estrogen
c. human chorionic gonadotropin
d. human placental lactogen correct answersc. human chorionic gonadotropin
When preparing to teach a class about prenatal development, the nurse would include
information about folic acid supplementation. What is the folic acid known to prevent?
a. congenital heart defects
b. neural tube defects
c. mental retardation
d. premature birth correct answersb. neural tube defects