HESI LPN
HESI Maternal Newborn
1. When does the fetus typically begin to turn and respond to external stimulation during pregnancy?
- A. During the second or third week
- B. After the first trimester
- C. Sometimes
- D. Never
Correct answer: B
Rationale: The correct answer is B. The fetus typically begins to respond to external stimulation much later in pregnancy, usually after the first trimester. During the second or third week of pregnancy, the fetus is still in the early stages of development and is not yet capable of turning or responding to external stimuli. Choices A, C, and D are incorrect because they do not accurately reflect the timeline of fetal development when it comes to responding to external stimulation.
2. A 30-year-old primigravida delivers a nine-pound (4082 gram) infant vaginally after a 30-hour labor. What is the priority nursing action for this client?
- A. Assess the blood pressure for hypertension.
- B. Gently massage fundus every four hours.
- C. Observe for signs of uterine hemorrhage.
- D. Encourage direct contact with the infant.
Correct answer: C
Rationale: After a prolonged labor and delivery of a large infant, the client is at an increased risk for uterine atony and postpartum hemorrhage, making observation for signs of bleeding a priority. Assessing the blood pressure for hypertension (Choice A) is not the priority in this situation as the immediate concern is postpartum hemorrhage. Gently massaging the fundus every four hours (Choice B) is a routine postpartum care activity but is not the priority in this scenario. Encouraging direct contact with the infant (Choice D) is important for bonding but does not address the immediate risk of uterine hemorrhage after delivery.
3. Which of the following statements is true of sickle-cell anemia?
- A. It is typically managed with treatments such as pain relief medications.
- B. It is caused by a mutation in the beta-globin gene.
- C. It leads to the obstruction of small blood vessels and decreased oxygen delivery.
- D. It is more prevalent in individuals of African, Mediterranean, Middle Eastern, and Indian descent.
Correct answer: C
Rationale: The correct answer is C. Sickle-cell anemia results from a mutation in the beta-globin gene, causing red blood cells to become sickle-shaped. These misshapen cells can obstruct small blood vessels, leading to reduced oxygen delivery to tissues. Choices A, B, and D are incorrect because sickle-cell anemia is typically managed with treatments such as pain relief medications, hydration, and in severe cases, blood transfusions. It is caused by a specific mutation in the beta-globin gene, not by the inability to metabolize phenylalanine. Additionally, sickle-cell anemia is more prevalent in individuals of African, Mediterranean, Middle Eastern, and Indian descent, not exclusive to any specific gender.
4. Once the testes have developed in the embryo, they begin to produce male sex hormones, or _____.
- A. androgens
- B. genotypes
- C. blastocysts
- D. teratogens
Correct answer: A
Rationale: Androgens are male sex hormones, such as testosterone, produced by the testes after they have developed in the embryo. Androgens are responsible for the development of male secondary sexual characteristics. Genotypes refer to an individual's genetic makeup, not hormones. Blastocysts are early stage embryos, not male sex hormones. Teratogens are substances that can interfere with fetal development, not male sex hormones produced by the testes.
5. A nurse is planning to teach a group of clients who are breastfeeding after returning to work. Which of the following instructions should the nurse include in the teaching?
- A. “Thawed breast milk can be refrigerated for up to 24 hours.”
- B. “Breast milk can be stored in a deep freezer for 12 months.”
- C. “Breast milk can be stored at room temperature for up to 4 hours.”
- D. “Thawed breast milk that is unused cannot be refrozen.”
Correct answer: B
Rationale: The correct answer is B: “Breast milk can be stored in a deep freezer for 12 months.” This instruction is important for mothers returning to work to ensure a long-term storage option for breast milk. Choice A is incorrect because thawed breast milk should be used within 24 hours if stored in the refrigerator. Choice C is incorrect as breast milk can be kept at room temperature for only up to 4 hours. Choice D is incorrect as thawed breast milk that is unused should not be refrozen due to safety concerns.
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