Exam 1 OB NCLEX Questions with correct answers|100% verified|15 pages

Exam 1 OB NCLEX Questions with correct answers A nursing student is preparing a prenatal class on the process of fetal circulation. The nursing instructor asks the student specifically to describe the process through the umbilical cord. Which of the following statements from the student is correct? 1. "The one artery carries freshly oxygenated blood and nutrient-rick blood back from the placenta to the fetus." 2. "The two arteries carry freshly oxygenated blood back from the placenta to the fetus." 3. "The two arteries in the umbilical cord carry deoxygenated blood and waste products away from the fetus to the placenta." 4. "The two veins in the umbilical cord carry blood that is high in carbon dioxide and other waste products away from the fetus to the placenta." Correct Answer-3. "The two arteries in the umbilical cord carry deoxygenated blood and waste products away from the fetus to the placenta." Rational: Blood pumped by the embryo's heart leaves the embryo through two umbilical arteries. When oxygenated, the blood is returned by one umbilical vein. A pregnant client tells the clinic nurse that she wants to k now the sex of her baby as soon as it can be determined. The nurse understands that the client should be able to find out at 12 weeks' gestation because by the end of the twelfth week: 1. The sex of the fetus can be determined by the appearance of the external genitalia. 2. The sex of the fetus can be determined because the external genitalia begin to differentiate. 3. The sex of the fetus can be determined because the testes are descended into the scrotal sac. 4. The sex of the fetus can be determined because the internal differences in males and females becomes apparent. Correct Answer-1. The sex of the fetus can be determined by the appearance of the external genitalia.