HESI LPN
HESI Maternity 55 Questions
1. A client is receiving oxytocin by continuous IV infusion for labor induction. Which of the following interventions should the nurse include in the plan?
- A. Increase the infusion rate every 30 to 60 minutes.
- B. Maintain the client in a supine position.
- C. Titrate the infusion rate by 4 milliunits/min.
- D. Limit IV intake to 4 L per 24 hours.
Correct answer: A
Rationale: The correct answer is to increase the infusion rate every 30 to 60 minutes. This approach allows for the careful monitoring and adjustment of oxytocin administration during labor induction. Choice B is incorrect because maintaining the client in a supine position can decrease blood flow to the placenta and compromise fetal oxygenation. Choice C is incorrect as titrating the infusion rate by 4 milliunits/min is not a standard practice for oxytocin administration. Choice D is incorrect as limiting IV intake to 4 L per 24 hours is not specifically related to the administration of oxytocin for labor induction.
2. What maternal factor should the nurse identify as having the greatest impact on the development of spina bifida occulta in a newborn?
- A. Short interval between pregnancies
- B. Folic acid deficiency
- C. Preeclampsia
- D. Tobacco use
Correct answer: B
Rationale: Folic acid deficiency during pregnancy is a well-known risk factor for neural tube defects, including spina bifida occulta, making supplementation critical in prenatal care. Folic acid plays a crucial role in neural tube formation during early pregnancy. Short intervals between pregnancies do not directly impact the development of spina bifida occulta. Preeclampsia is a hypertensive disorder of pregnancy and is not directly linked to spina bifida occulta. While tobacco use during pregnancy has various adverse effects, it is not the primary factor influencing the development of spina bifida occulta in newborns.
3. Which of the following statements is true of mutations?
- A. Mutations can only occur by chance.
- B. Mutations produce sperm and ova cells.
- C. Mutations occur through radiation or other environmental influences.
- D. Mutations help adenine combine with guanine to form the single spiral structure of DNA.
Correct answer: C
Rationale: The correct answer is C. Mutations can occur due to environmental influences such as radiation, chemicals, or other external factors, leading to changes in the DNA sequence. Choice A is incorrect because mutations can also occur due to errors in DNA replication, not solely by chance. Choice B is incorrect as mutations affect the DNA sequence itself, not the production of specific cells. Choice D is incorrect because mutations involve changes in the DNA sequence and do not specifically involve the formation of the DNA structure.
4. The nurse is providing care for a newborn who was delivered vaginally assisted by forceps. The nurse observes red marks on the head with swelling that does not cross the suture line. Which condition should the nurse document in the medical record?
- A. Caput succedaneum
- B. Hydrocephalus
- C. Cephalhematoma
- D. Microcephaly
Correct answer: C
Rationale: The correct answer is Cephalhematoma. Cephalhematoma is a collection of blood between the skull bone and periosteum that does not cross the suture line. It often occurs due to birth trauma, such as forceps delivery, leading to localized swelling. Caput succedaneum (Choice A) is diffuse swelling of the scalp that may cross suture lines and is typically present at birth. Hydrocephalus (Choice B) is an abnormal accumulation of cerebrospinal fluid within the brain's ventricles. Microcephaly (Choice D) is a condition characterized by a smaller than average head size and may be present at birth or develop later in infancy.
5. Which of the following statements is true of a sperm cell?
- A. A sperm cell is significantly larger than an egg cell.
- B. A sperm cell contains two Y chromosomes.
- C. A sperm cell travels randomly inside a woman’s reproductive tract.
- D. A sperm cell is one of the smallest types of cells in the body.
Correct answer: D
Rationale: The correct answer is D. A sperm cell is indeed one of the smallest cells in the human body, much smaller than an egg cell. Choice A is incorrect as sperm cells are much smaller than egg cells. Choice B is incorrect because a sperm cell carries either an X or a Y chromosome, not two Y chromosomes. Choice C is incorrect since sperm cells move in a purposeful manner guided by various factors within a woman's reproductive tract, not randomly.
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