Nokea
The prenatal nurse is discussing fetal circulation with a student nurse. What statement by the student indicates to the prenatal nurse the student understands the information?
- A. The ductus arteriosus attaches the umbilical artery to the hepatic artery.
- B. The ductus venosus attaches the pulmonary artery to the aorta.
- C. The foramen ovale is located in the ventricular septum.
- D. There are two arteries and one vein in the umbilical cord.
Correct Answer: D
Rationale: The umbilical cord has two arteries and one vein. Other statements about fetal circulation are incorrect.
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An expectant mother asks the nurse when her baby’s heart will begin to beat. The nurse explains that this will occur at which time?
- A. The 8th gestational week
- B. The 4th gestational week
- C. The 12th gestational week
- D. The 16th gestational week
Correct Answer: B
Rationale: The heart begins to beat by the 4th gestational week.
The nurse is caring for a pregnant person at 28 weeks’ gestation who has started noticing an increase in vaginal discharge that does not have an odor. What is the appropriate response by the nurse to the pregnant person’s concern?
- A. The discharge is because of the weight of the uterus on your bladder.
- B. The discharge means you have a urinary tract infection.
- C. A slight increase in vaginal discharge is expected at 28 weeks of gestation.
- D. There is nothing to worry about.
Correct Answer: C
Rationale: Increased vaginal discharge is normal due to hormonal changes. It does not indicate an infection or bladder issue.
Expectant parents of twins tell the nurse they are having fraternal twins and are asking the nurse what that means. Which reply of the nurse is correct?
- A. Your twins will both be boys.
- B. Your twins are called monozygotic.
- C. You have one placenta and one of each of the fetal membranes called the chorion and amnion.
- D. Your twins will be as alike as any two siblings.
Correct Answer: D
Rationale: Fraternal twins are dizygotic, meaning they are as genetically similar as any other siblings.
The nurse is discussing genetically linked diseases with a couple planning a pregnancy. The female states, 'I am concerned because there is a history of sickle-cell disease in my family.' Which information from the nurse is correct?
- A. Any offspring will have the disease.
- B. Only male children will have the disease.
- C. The male partner needs genetic testing.
- D. The couple should not become pregnant.
Correct Answer: C
Rationale: The male partner should undergo genetic testing to determine if he is a carrier of the sickle-cell gene. This information guides the couple's reproductive decisions.
What occurs in the intervillous space in the developing placenta?
- A. None
- B. Oxygen and nutrients perfuse across the chorion villi to enter fetal circulation.
- C. None
- D. None
Correct Answer: B
Rationale: This is the primary function of the intervillous space.