HESI LPN
HESI Focus on Maternity Exam
1. A newborn is being assessed following a forceps-assisted birth. Which of the following clinical manifestations should the nurse identify as a complication of the birth method?
- A. Hypoglycemia
- B. Polycythemia
- C. Facial Palsy
- D. Bronchopulmonary dysplasia
Correct answer: C
Rationale: Facial palsy is a known complication of forceps-assisted birth. During forceps delivery, pressure applied to the facial nerve can result in facial palsy. The newborn may present with weakness or paralysis of the facial muscles on one side. Hypoglycemia (Choice A) is not directly related to forceps-assisted birth. Polycythemia (Choice B) is a condition characterized by an increased number of red blood cells and is not typically associated with forceps delivery. Bronchopulmonary dysplasia (Choice D) is a lung condition that primarily affects premature infants who require mechanical ventilation and prolonged oxygen therapy, not a direct outcome of forceps-assisted birth.
2. When should the low-risk patient, who is 16 weeks pregnant, be advised to return to the prenatal clinic?
- A. 1 week.
- B. 2 weeks.
- C. 3 weeks.
- D. 4 weeks.
Correct answer: D
Rationale: The correct answer is D: 4 weeks. Low-risk pregnant patients typically have prenatal visits every 4 weeks until 28 weeks of gestation. This frequency allows for adequate monitoring of the pregnancy without being overly burdensome on the patient. Choices A, B, and C are incorrect as they do not align with the standard prenatal care schedule for low-risk pregnancies. Visits that are too frequent may cause unnecessary anxiety for the patient, while visits that are too infrequent may miss important opportunities for monitoring and intervention.
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 newborn's head circumference is 12 inches (30.5 cm) and his chest measurement is 13 inches (33 cm). The nurse notes that this infant has no molding, and it was a breech presentation delivered by cesarean section. What action should the nurse take based on this data?
- A. No action needs to be taken, it is normal for an infant born by cesarean section to have a small head circumference.
- B. Notify the pediatrician immediately. These signs support the possibility of hydrocephalus.
- C. Call these findings to the attention of the pediatrician. The head/chest ratio is abnormal.
- D. Record the findings on the chart. They are within normal limits.
Correct answer: D
Rationale: Head and chest circumference measurements are within normal limits for a newborn, especially for those delivered by cesarean section, so no immediate action is required beyond documentation.
5. A premature infant with respiratory distress syndrome (RDS) receives artificial surfactant. How does the nurse explain surfactant therapy to the parents?
- A. “Surfactant improves the ability of your baby’s lungs to exchange oxygen and carbon dioxide.”
- B. “The drug keeps your baby from requiring too much sedation.”
- C. “Surfactant is used to reduce episodes of periodic apnea.”
- D. “Your baby needs this medication to fight a possible respiratory tract infection.”
Correct answer: A
Rationale: Artificial surfactant can be administered as an adjunct to oxygen and ventilation therapy for premature infants with respiratory distress syndrome (RDS). It helps improve respiratory compliance by aiding in the exchange of oxygen and carbon dioxide until the infant can produce enough surfactant naturally. The correct explanation to the parents would be that surfactant therapy enhances the baby’s lung function by facilitating the exchange of oxygen and carbon dioxide. Choice B is incorrect because surfactant therapy does not affect sedation needs. Choice C is inaccurate as surfactant is not used to reduce episodes of periodic apnea. Choice D is incorrect as surfactant is not administered to fight respiratory tract infections; it specifically targets improving lung function in RDS.
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