Chapter 5: Conception and Prenatal Development
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Questions and 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?

  • X-bearing sperm
  • The tail of the sperm
  • The head of the sperm (correct)
  • The middle portion 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?

  • One artery and one vein
  • Two veins and one artery
  • Two arteries and one vein (correct)
  • Two arteries and two veins
  • What is the purpose of the ovum’s zona pellucida?

  • Makes a pathway for more than one sperm to reach the ovum
  • Prevents multiple sperm from fertilizing the ovum (correct)
  • Stimulates the ovum to begin mitotic cell division
  • Allows the 46 chromosomes from each gamete to merge
  • 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?

    <p>Solid ball composed of the first cells formed after fertilization</p> Signup and view all the answers

    The upper uterus is the best place for the fertilized ovum to implant due to which anatomical adaptation?

    <p>Developing baby is best nourished.</p> Signup and view all the answers

    Some of the embryo’s intestines remain within the umbilical cord during the embryonic period because the

    <p>abdomen is too small to contain all the organs while they are developing.</p> Signup and view all the answers

    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?

    <p>“Within the next month you should start to feel fluttering sensations.”</p> Signup and view all the answers

    Which statement best describes the changes that occur during the fetal period of development?

    <p>Maturation of organ systems</p> Signup and view all the answers

    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

    <p>protect the fetal skin from amniotic fluid.</p> Signup and view all the answers

    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?

    <p>Oligohydramnios can cause poor fetal lung development.</p> Signup and view all the answers

    The nurse is conducting a staff in-service on multifetal pregnancy. Which statement regarding dizygotic twin development should the nurse include in the teaching session?

    <p>Dizygotic twins arise from two fertilized ova and may be the same sex or different sexes.</p> Signup and view all the answers

    An infant is diagnosed with fetal anemia. Which information would support this clinical diagnosis?

    <p>Passive immunity</p> Signup and view all the answers

    The nurse is explaining the function of the placenta to a pregnant patient. Which statement indicates to the nurse that further clarification is necessary?

    <p>The placenta helps maintain a stable temperature for my baby.”</p> Signup and view all the answers

    The nurse is assessing a newborn immediately after birth. After assigning the first Apgar score of 9, the nurse notes two vessels in the umbilical cord. What is the nurse’s next action?

    <p>Assess for other abnormalities of the infant.</p> Signup and view all the answers

    A pregnant patient asks the nurse how her baby gets oxygen to breathe. What is the nurse’s best response?

    <p>“Oxygen-rich blood is delivered through the umbilical vein to the baby.”</p> Signup and view all the answers

    Which physical characteristics decrease as the fetus nears term? (Select all that apply.)

    <p>Vernix caseosa</p> Signup and view all the answers

    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.)

    <p>Estrogen</p> Signup and view all the answers

    The nurse is planning a prenatal class on fetal development. Which characteristics of prenatal development should the nurse include for a fetus of 24 weeks, based on fertilization age? (Select all that apply.)

    <p>Skin wrinkled and red</p> Signup and view all the answers

    The nurse is explaining fetal circulation to a group of nursing students. Which information should be included in the teaching session? (Select all that apply.)

    <p>The foramen ovale shunts blood from the right atrium to the left atrium.</p> Signup and view all the answers

    A nurse is conducting prenatal education classes for a group of expectant parents. Which information should the nurse include in her discussion of the purpose of amniotic fluid? (Select all that apply.)

    <p>Cushions the fetus</p> Signup and view all the answers

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