OB Exam 1 NCLEX-Questions And Answers 100% Guaranteed Pass! A+

OB Exam 1 NCLEX-Questions And Answers 100% Guaranteed Pass! A+ The nurse should teach a pregnant woman that which substances are teratogens? (Select all that apply) a. Cigarette smoke b. Isotretinoin (Retin A) c. Vitamin C d. Salicylic acid e. Rubella - ANS-abe Congenital disorders refer to conditions that are present at birth. These disorders may be inherited and caused by environmental factors or maternal malnutrition. Toxic exposures have the greatest effect on development between 15 and 60 days of gestation. For the nurse to be able to conduct a complete assessment of the newly pregnant client, she should understand the significance of exposure to known human teratogens. These include(Select all that apply): a. Infections. b. Radiation. c. Maternal conditions. d. Drugs. e. Chemicals. - ANS-abcde A nurse is providing genetic counseling for an expectant couple who already have a child with trisomy 18. The nurse should: a. tell the couple they need to have an abortion within 2 to 3 weeks. b. explain that the fetus has a 50% chance of having the disorder. c. discuss options with the couple, including amniocentesis to determine whether the fetus is affected. d. refer the couple to a psychologist for emotional support. - ANS-c With regard to chromosome abnormalities, nurses should be aware that: a. They occur in approximately 10% of newborns. b. Abnormalities of number are the leading cause of pregnancy loss. c. Down syndrome is a result of an abnormal chromosome structure. d. Unbalanced translocation results in a mild abnormality that the child will outgrow. - ANS-b With regard to the estimation and interpretation of the recurrence of risks for genetic disorders, nurses should be aware that: a. with a dominant disorder, the likelihood of the second child also having the condition is 100%. b. an autosomal recessive disease carries a one in eight risk of the second child also having the disorder. c. disorders involving maternal ingestion of drugs carry a one in four chance of being repeated in the second child. d. the risk factor remains the same no matter how many affected children are already in the family. - ANS-d A couple has been counseled for genetic anomalies. They ask you, "What is karyotyping?" Your best response is a. "Karyotyping will reveal if the baby's lungs are mature." b. "Karyotyping will reveal if your baby will develop normally." c. "Karyotyping will provide information about the gender of the baby, and the number and structure of the chromosomes." - ANS-c What best describes the pattern of genetic transmission known as autosomal recessive inheritance? a. Disorders in which the abnormal gene for the trait is expressed even when the other member of the pair is normal b. Disorders in which both genes of a pair must be abnormal for the disorder to be expressed c. Disorders in which a single gene controls the particular trait d. Disorders in which the abnormal gene is carried on the X chromosome - ANS-... Continues...