HESI LPN
HESI Focus on Maternity Exam
1. The healthcare provider is preparing to administer phytonadione (vitamin K) to a newborn. Which statement made by the parents indicates understanding why the healthcare provider is administering this medication?
- A. Improve insufficient dietary intake
- B. Stimulate the immune system
- C. Help an immature liver
- D. Prevent hemorrhagic disorders
Correct answer: D
Rationale: The correct answer is D because phytonadione (vitamin K) is administered to newborns to prevent hemorrhagic disease due to their low levels of vitamin K, which is essential for blood clotting. Choice A is incorrect as vitamin K administration is not related to improving dietary intake. Choice B is incorrect as vitamin K doesn't stimulate the immune system. Choice C is incorrect as vitamin K is not given to help an immature liver, but rather to prevent hemorrhagic disorders.
2. Which of the following statements is a symptom of cystic fibrosis in children?
- A. Cystic fibrosis leads to uncontrollable muscle movements and personality changes.
- B. Cystic fibrosis leads to the excessive production of thick mucus that clogs the pancreas and lungs.
- C. Cystic fibrosis causes red blood cells to clump together, obstructing small blood vessels and decreasing the oxygen supply.
- D. Cystic fibrosis causes the central nervous system to degenerate, resulting in death.
Correct answer: B
Rationale: The correct answer is B. Cystic fibrosis is a genetic disorder that causes the body to produce thick, sticky mucus. This mucus can clog the airways in the lungs and obstruct the pancreas, leading to severe respiratory and digestive problems. Choice A is incorrect because uncontrollable muscle movements and personality changes are not typical symptoms of cystic fibrosis. Choice C is incorrect because cystic fibrosis does not directly cause red blood cells to clump together and obstruct small blood vessels. Choice D is incorrect because cystic fibrosis primarily affects the respiratory and digestive systems, not the central nervous system.
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. _________ are problems that stem from the interaction of heredity and environmental factors.
- A. Multifactorial problems
- B. Cognitive problems
- C. Horizon problems
- D. Coronal problems
Correct answer: A
Rationale: Multifactorial problems are conditions that result from the interplay of genetic and environmental factors. These conditions, such as diabetes or heart disease, are not solely determined by genetics or environment but are influenced by a combination of both factors. Choice B, cognitive problems, refers to difficulties related to thinking, learning, and memory and are not specifically linked to genetic and environmental interactions. Choices C and D, horizon problems and coronal problems, are nonsensical terms and do not relate to the interaction of heredity and environmental factors.
5. A nurse is reviewing laboratory results for a term newborn who is 24 hours old. Which of the following results require intervention by the nurse?
- A. WBC count 10,000/mm3
- B. Platelets 180,000/mm3
- C. Hemoglobin 20g/dL
- D. Glucose 20 mg/dL
Correct answer: D
Rationale: A glucose level of 20 mg/dL is critically low for a newborn and requires immediate intervention. Hypoglycemia in a newborn can lead to serious complications such as neurologic deficits. The normal range for glucose levels in a newborn is typically 40-60 mg/dL. Choices A, B, and C represent normal or acceptable values for a term newborn and do not require immediate intervention. A WBC count of 10,000/mm3, platelets of 180,000/mm3, and hemoglobin of 20g/dL are all within normal ranges for a term newborn and do not raise immediate concerns.
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