HESI LPN
HESI Focus on Maternity Exam
1. Which information regarding the care of antepartum women with cardiac conditions is most important for the nurse to understand?
- A. Stress on the heart is greatest in the first trimester and the last 2 weeks before labor.
- B. Women with class II cardiac disease should avoid heavy exertion and any activity that causes even minor symptoms.
- C. Women with class III cardiac disease should get 8 to 10 hours of sleep every day and limit housework, shopping, and exercise.
- D. Women with class I cardiac disease need bed rest through most of the pregnancy and face the possibility of hospitalization near term.
Correct answer: B
Rationale: Class II cardiac disease is symptomatic with ordinary activity. Women in this category need to avoid heavy exertion and limit regular activities as symptoms dictate. Stress is greatest between weeks 28 and 32 of gestation, when hemodynamic changes reach their maximum. Class III cardiac disease is symptomatic with less-than-ordinary activity. These women need bed rest most of the day and face the possibility of hospitalization near term. Class I cardiac disease is asymptomatic at normal levels of activity. These women can perform limited normal activities with discretion, although they still need a good amount of sleep.
2. 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.
3. A healthcare provider is assessing a newborn upon admission to the nursery. Which of the following should the provider expect?
- A. Bulging Fontanels
- B. Nasal Flaring
- C. Length from head to heel of 40 cm (15.7 in)
- D. Chest circumference 2 cm (0.8 in) smaller than the head circumference
Correct answer: D
Rationale: Upon admission to the nursery, a healthcare provider should expect the newborn's chest circumference to be slightly smaller than the head circumference. This is a normal finding in newborns due to their physiological development. Bulging fontanels (Choice A) can indicate increased intracranial pressure, which is abnormal. Nasal flaring (Choice B) is a sign of respiratory distress and is also an abnormal finding. While a length from head to heel of 40 cm (15.7 in) (Choice C) falls within the normal range for newborns, it is not a specific expectation upon admission to the nursery. Therefore, the correct expectation for a newborn upon admission is for the chest circumference to be slightly smaller than the head circumference.
4. Polygenic traits are those that are:
- A. developed during adolescence.
- B. transmitted by the mother.
- C. uncommon in humans.
- D. determined by several pairs of genes.
Correct answer: D
Rationale: Polygenic traits, such as height and skin color, are determined by several pairs of genes working together. These traits are influenced by the combined effects of multiple genes across the genome, rather than being controlled by a single gene pair. Choices A, B, and C are incorrect because polygenic traits are not specifically developed during adolescence, transmitted by the mother, or uncommon in humans. Understanding polygenic traits is essential in genetics as they demonstrate the complexity of genetic inheritance and the influence of multiple genes on a single trait.
5. 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.
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