Maternal Child Nursing 5th Edition by McKinney- ISBN- 978-0323401708 TEST BANK Chapter 10: Hereditary and Environmental Influences on Development Verified 2024 Practice Questions and 100% Correct Answers with Explanations for Exam Preparation, Graded A+

Maternal Child Nursing 5th Edition by McKinney- ISBN- 978-0323401708 TEST BANK Chapter 10: Hereditary and Environmental Influences on Development Verified 2024 Practice Questions and 100% Correct Answers with Explanations for Exam Preparation, Graded A+ How can a woman avoid exposing her fetus to teratogens? a. Update her immunizations during the first trimester of her pregnancy. b. Use saunas and hot tubs during the winter months only. c. Use only class A drugs during her pregnancy. d. Use alcoholic beverages only in the first and third trimesters of pregnancy. ANS: C In well-controlled studies, class A drugs have no demonstrated fetal risk. Immunizations, such as rubella, are contraindicated in pregnancy. Maternal hyperthermia is an important teratogen. Alcohol is an environmental substance known to be teratogenic. PTS: 1 DIF: Cognitive Level: Knowledge/RememberingREF: p. 177 OBJ: Nursing Process: Planning MSC: Client Needs: Health Promotion and Maintenance 2. The karyotype of a person is 47, XY, +21. This person is a a. normal male. b. male with Down syndrome. c. normal female. d. female with Turner syndrome. ANS: B This person is male because his sex chromosomes are XY. He has one extra copy of chromosome 21 (for a total of 47 instead of 46), resulting in Down syndrome. A normal malehas 46 chromosomes. A normal female has 46 chromosomes and XX for the sex chromosomes. A female with Turner syndrome has 45 chromosomes; the sex chromosomes have just one X. PTS: 1 DIF: Cognitive Level: Knowledge/RememberingREF: p. 175 OBJ: Nursing Process: Assessment MSC: Client Needs: Physiologic Integrity