Chapter 4 Fetal Development - Leifer Maternity and Pediatric Nursing

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Chapter 4 Fetal Development - Leifer Maternity and Pediatric Nursing NURSINGTB.COM 1. What is the total number of chromosomes contained in a mature sperm or ovum? a. 22 b. 23 c. 44 d. 46 ANS: B Gametes (sex chromosomes) contain 23 chromosomes. DIF: Cognitive Level: Knowledge REF: Page 33 TOP: Gametogenesis KEY: Nursing Process Step: N/A MSC: NCLEX: Health Promotion and Maintenance: Growth and Development 2. 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. ANS: D When a Y-bearing sperm fertilizes an ovum, a male child is produced. DIF: Cognitive Level: Comprehension REF: Page 35 TOP: Sex Determination KEY: Nursing Process Step: Implementation MSC: NCLEX: Health Promotion and Maintenance: Growth and Development 3. 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 ANS: B Fertilization takes place in the outer third of the fallopian tube, which is closest to the ovary. DIF: Cognitive Level: Knowledge REF: Page 35 TOP: Fertilization KEY: Nursing Process Step: Implementation MSC: NCLEX: Health Promotion and Maintenance: Growth and Development 4. The embryo is termed a fetus at which stage of prenatal development? a. 2 weeks b. 4 weeks c. 9 weeks d. 16 weeks ANS: C The fetus (third stage of prenatal development) begins at the ninth week and continues until the 40th week of gestation or until birth. DIF: Cognitive Level: Knowledge REF: Page 38 TOP: Prenatal Developmental Milestones KEY: Nursing Process Step: Implementation MSC: NCLEX: Health Promotion and Maintenance: Growth and Development

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