HESI LPN
HESI Focus on Maternity Exam
1. The healthcare provider is planning care for a client at 30 weeks gestation who is experiencing preterm labor. Which medication is most important in preventing this fetus from developing respiratory distress syndrome?
- A. Ampicillin 1 gram IV push every 8 hours
- B. Betamethasone 12 mg deep IM
- C. Terbutaline 0.25 mg subcutaneously every 15 minutes for 3 doses
- D. Butorphanol tartrate 1 mg IV push every 2 hours as needed
Correct answer: B
Rationale: Betamethasone is a corticosteroid given to stimulate fetal lung maturity and reduce the risk of respiratory distress syndrome in preterm infants. Ampicillin (Choice A) is an antibiotic and does not prevent respiratory distress syndrome. Terbutaline (Choice C) is a tocolytic used to inhibit contractions and does not directly prevent respiratory distress syndrome. Butorphanol tartrate (Choice D) is an opioid analgesic and does not have a role in preventing respiratory distress syndrome in preterm infants.
2. Why is a client with gestational diabetes being scheduled for an amniocentesis when the fetus has an estimated weight of eight pounds (3629 grams) at 36 weeks gestation? What information is the amniocentesis seeking to obtain?
- A. Presence of a neural tube defect.
- B. Chromosomal abnormalities.
- C. Gender of the fetus.
- D. Fetal lung maturity.
Correct answer: D
Rationale: An amniocentesis in this scenario is most likely being performed to assess fetal lung maturity. This is necessary when considering early delivery due to macrosomia (large fetal size), which is a common concern in gestational diabetes. Evaluating fetal lung maturity is crucial to determine if the fetus's lungs are developed enough to support breathing independently outside the womb. The presence of a neural tube defect and chromosomal abnormalities are not typically assessed through amniocentesis in this situation, and determining the gender of the fetus is not the primary purpose of the procedure here.
3. What is the process in which the double helix of deoxyribonucleic acid (DNA) duplicates?
- A. Amniocentesis
- B. Mitosis
- C. Meiosis
- D. Mutation
Correct answer: B
Rationale: Mitosis is the correct answer because it is the process of cell division in which a cell duplicates its DNA and divides into two identical daughter cells. During mitosis, the DNA is replicated, and each daughter cell receives an identical copy of the genetic material. Amniocentesis is a medical procedure to collect amniotic fluid for prenatal genetic testing and is not related to DNA duplication. Meiosis is a type of cell division that produces gametes with half the genetic material of the parent cell, leading to genetic diversity. Mutation is a permanent alteration in the DNA sequence that can lead to genetic variations but is not the process of DNA duplication.
4. A client at 38 weeks gestation is admitted to labor and delivery with a complaint of contractions 5 minutes apart. While the client is in the bathroom changing into a hospital gown, the nurse hears the noise of a baby. What should the nurse do first?
- A. Push the call light for help
- B. Inspect the client's perineum
- C. Notify a healthcare provider
- D. Turn on the infant warmer
Correct answer: B
Rationale: Inspecting the client's perineum immediately is necessary to assess if the baby is being delivered, which would require urgent action. Pushing the call light for help (Choice A) may delay the assessment and immediate action needed. Notifying a healthcare provider (Choice C) might cause further delays, as the situation requires urgent attention. Turning on the infant warmer (Choice D) is not the priority; ensuring safe delivery and assessment of the baby's condition come first.
5. What is the highest priority nursing intervention when admitting a pregnant woman who has experienced a bleeding episode in late pregnancy?
- A. Assessing FHR and maternal vital signs.
- B. Performing a venipuncture for hemoglobin and hematocrit levels.
- C. Placing clean disposable pads to collect any drainage.
- D. Monitoring uterine contractions.
Correct answer: A
Rationale: The highest priority nursing intervention when admitting a pregnant woman who has experienced a bleeding episode in late pregnancy is to assess the fetal heart rate (FHR) and maternal vital signs. This assessment is crucial in determining the extent of blood loss and its impact on both the mother and the fetus. Ensuring the well-being of both the mother and the fetus is the top priority in this situation. While obtaining hemoglobin and hematocrit levels is important, it can be done after the initial assessment. Placing clean disposable pads is necessary for managing any drainage but does not take precedence over assessing vital signs. Monitoring uterine contractions is important but is not the highest priority when compared to assessing the FHR and maternal vital signs.
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