NURS 105 - OB Exam 1. Questions & Answers.

NURS 105 - OB Exam 1. Questions & Answers. Chapter 12: Conception and Fetal Development 1. A newly married couple plans to use natural family planning. It is important for them to know how long an ovum can live after ovulation. The nurse knows that teaching is effective when the couple responds that an ovum is considered fertile for: a. 24 hours 2. The volume of amniotic fluid is an important factor in assessing fetal well-being. Oligohydramnios (an amniotic fluid volume of less than 300 ml) is associated with what kind of fetal anomalies? a. Renal 3. A pregnant woman at 25 weeks of gestation tells the nurse that she dropped a pan last week and her baby jumped at the noise. Which response by the nurse is most accurate? a. “Babies respond to sound starting at about 24 weeks of gestation.” 4. At approximately _____ weeks of gestation, lecithin is forming on the alveolar surfaces, the eyelids open, and the fetus measures approximately 27 cm crown to rump and weighs approximately 1110 g. a. 28 (amniocentesis to measure this @ 32 weeks +) 5. It is important for the nurse to understand that the placenta: a. Secretes both estrogen and progesterone 6. A nurse caring for a laboring woman should know that meconium is produced by: a. Fetal intestines 7. The _____ is/are responsible for oxygen and carbon dioxide transport to and from the maternal bloodstream. a. Chorionic villi 8. A woman who is 8 months pregnant asks the nurse, “Does my baby have any antibodies to fight infection?” The most appropriate response by the nurse is: a. “Your baby has IgG and IgM immunoglobulins.” 9. The measurement of lecithin in relation to sphingomyelin (L/S ratio) is used to determine fetal lung maturity. Which ratio reflects maturity of the lungs? a. 2:1 - Amniocentesis to measure this 32 w + 10. Sally comes in for her first prenatal examination. This is her first child. She asks you (the nurse), “How does my baby get air inside my uterus?” The correct response is: a. “The placenta provides oxygen to the baby and excretes carbon dioxide into your bloodstream.”