HESI LPN
HESI Maternal Newborn
1. Preconception counseling is crucial for the safe management of diabetic pregnancies. Which complication is commonly associated with poor glycemic control before and during early pregnancy?
- A. Frequent episodes of maternal hypoglycemia
- B. Congenital anomalies in the fetus
- C. Hydramnios
- D. Hyperemesis gravidarum
Correct answer: B
Rationale: Preconception counseling is essential as strict metabolic control before conception and in the early weeks of gestation helps reduce the risk of congenital anomalies. Frequent episodes of maternal hypoglycemia usually occur during the first trimester due to hormonal changes, affecting insulin production and use, rather than before conception. Hydramnios is more common in diabetic pregnancies, typically seen in the third trimester, not during early pregnancy. Hyperemesis gravidarum, although it may lead to hypoglycemic events, is related to decreased food intake and glucose transfer to the fetus, exacerbating hypoglycemia rather than being directly associated with poor glycemic control before and during early pregnancy.
2. Which of the following pairs share 100% of their genes?
- A. Biovular twins
- B. Fraternal twins
- C. Dizygotic (DZ) twins
- D. Monozygotic (MZ) twins
Correct answer: D
Rationale: The correct answer is Monozygotic (MZ) twins. Monozygotic twins, also known as identical twins, share 100% of their genes because they originate from the same fertilized egg that splits into two. Fraternal twins (choice B), also known as dizygotic (DZ) twins (choice C), result from two separate fertilized eggs and share approximately 50% of their genes. Biovular twins (choice A) is not a term used in genetics and does not describe a type of twinning.
3. When do mothers usually feel the first fetal movements during pregnancy?
- A. At 18-20 weeks
- B. During the first month
- C. Rarely
- D. Never
Correct answer: A
Rationale: Mothers usually feel the first fetal movements, known as 'quickening,' around the 18th to 20th week of pregnancy. Feeling fetal movements during the first month is unlikely and uncommon. Therefore, option B is incorrect. Options C and D are also incorrect as mothers typically do feel fetal movements during pregnancy, just not during the first month.
4. The _____ is the inner layer of the embryo from which the lungs and digestive system develop.
- A. neural tube
- B. mesoderm
- C. endoderm
- D. umbilical cord
Correct answer: C
Rationale: The endoderm is the correct answer. It is the innermost layer of the embryo that gives rise to organs such as the lungs, digestive system, liver, and pancreas. The neural tube (Choice A) forms the brain and spinal cord, not the lungs or digestive system. Mesoderm (Choice B) develops into structures like muscles, bones, and circulatory system, not the lungs or digestive system. The umbilical cord (Choice D) serves as a connection between the embryo and the placenta, providing nutrients and oxygen, but it is not the layer from which lungs and digestive system develop.
5. A client who is 5 days postpartum is being taught about signs of effective breastfeeding. Which information should the nurse include in the teaching?
- A. Feeling a tugging sensation when the baby is sucking
- B. Expecting the baby to have two to three wet diapers in a 24-hour period
- C. The baby’s urine should appear dark and concentrated
- D. The breast should stay firm after the baby breastfeeds
Correct answer: A
Rationale: Feeling a tugging sensation while the baby is sucking indicates an effective latch and milk transfer during breastfeeding. This sensation means that the baby is effectively drawing milk from the breast. Choice B is incorrect because infants should ideally have six to eight wet diapers in a 24-hour period to show adequate hydration. Choice C is incorrect as a dark and concentrated urine may indicate dehydration, which is not a sign of effective breastfeeding. Choice D is incorrect as the breast should soften after the baby breastfeeds, indicating that the baby has effectively emptied the breast of milk.
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