Nokea
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. 20
- B. 24
- C. 28
- D. 30
Correct Answer: C
Rationale: These milestones of human development occur at approximately 28 weeks.
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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 all the immune globulins necessary: IgG, IgM, and IgA.
- B. Your baby won't receive any antibodies until he/she is born and you breastfeed him.
- C. Your baby does not have any antibodies to fight infection.
- D. Your baby has IgG and IgM.
Correct Answer: D
Rationale: During the third trimester, the fetus has IgG and IgM. Breastfeeding supplies the baby with IgA.
What hormone stimulates ovulation?
- A. None
- B. Luteinizing hormone (LH).
- C. None
- D. None
Correct Answer: B
Rationale: LH surge triggers ovulation.
A 34-year-old patient who is 16 weeks pregnant had a multiple markers screening done. The results came back with an increased risk for trisomy 21. You call the patient to go over the results. How should you respond when the patient asks you if the baby is going to have Down syndrome?
- A. Yes, would you like to continue or terminate your pregnancy?
- B. This screening predicts only the risk of your baby having Down syndrome and cannot diagnose it. Additional testing is needed to determine this.
- C. You will need to discuss this with your provider at your next appointment.
- D. Yes, this test shows your baby has Down syndrome. I’d be happy to send you resources about this condition so that you can be prepared for when your baby is born.
Correct Answer: B
Rationale: Screening tests like multiple marker tests indicate risk but do not confirm a diagnosis. Further tests are needed to determine if the baby has Down syndrome.
The nurse caring for a pregnant patient knows that her health teaching regarding fetal circulation has been effective when the patient reports that she has been sleeping:
- A. In a side-lying position.
- B. On her back with a pillow under her knees.
- C. With the head of the bed elevated.
- D. On her abdomen.
Correct Answer: A
Rationale: Optimal circulation is achieved when the woman is lying at rest on her side.
How many mature ova result from a single cycle of oogenesis?
- A. 1
- B. 2
- C. 3
- D. 4
Correct Answer: A
Rationale: Oogenesis produces one mature ovum per cycle, along with polar bodies that degenerate.