HESI LPN
Pediatric Practice Exam HESI
1. Why might a healthcare provider question a health care provider's order for a tap water enema for a 6-month-old infant with suspected Hirschsprung disease?
- A. The result could lead to loss of necessary nutrients.
- B. It could cause a fluid and electrolyte imbalance.
- C. It could increase the fear of intrusive procedures.
- D. The result could cause shock from a sudden drop in temperature.
Correct answer: B
Rationale: The correct answer is B. Tap water enemas can cause significant fluid and electrolyte imbalances, particularly in infants, making them unsafe for this age group. Choice A is incorrect because tap water enemas are unlikely to lead to loss of necessary nutrients. Choice C is incorrect as it does not directly relate to the physiological risk of tap water enemas. Choice D is incorrect as shock from a sudden drop in temperature is not a common concern with tap water enemas.
2. The parents of a newborn with phenylketonuria (PKU) need help and support in adhering to specific dietary restrictions. They ask the nurse, “How long will our child have to be on this diet?” How should the nurse respond?
- A. “We are still not sure; you should discuss this with your health care provider.”
- B. “If your baby does well, foods containing protein can gradually be introduced.”
- C. “Your child needs to be on this diet at least through adolescence and into adulthood.”
- D. “This is a lifelong problem, and it is recommended that dietary restrictions must be continued.”
Correct answer: D
Rationale: The correct answer is D: “This is a lifelong problem, and it is recommended that dietary restrictions must be continued.” PKU requires a lifelong adherence to a specific diet low in phenylalanine to prevent cognitive and developmental issues. Phenylalanine buildup can lead to irreversible damage, making it crucial for individuals with PKU to maintain dietary restrictions throughout their lives. Choices A, B, and C are incorrect because they do not address the lifelong nature of dietary restrictions necessary for PKU management.
3. A 34-year-old woman, who is 36 weeks pregnant, is having a seizure. After you protect her airway and ensure adequate ventilation, you should transport her
- A. on her left side
- B. in the prone position
- C. in the supine position
- D. in a semi-sitting position
Correct answer: A
Rationale: When a pregnant woman experiences a seizure, it is crucial to transport her on her left side. This position helps to improve blood flow to the fetus by preventing compression of the inferior vena cava, reducing the risk of further complications. Placing her in the prone position (lying face down) or supine position (lying on her back) may compromise blood flow to the fetus and lead to adverse outcomes. Similarly, transporting her in a semi-sitting position may not provide the optimal circulation needed for both the woman and the fetus during this critical situation.
4. The healthcare provider is assessing an infant and notes that the infant's urine has a mousy or musty odor. What would the healthcare provider suspect?
- A. Maple syrup urine disease
- B. Tyrosinemia
- C. Phenylketonuria
- D. Trimethylaminuria
Correct answer: C
Rationale: Phenylketonuria (PKU) is suggested by a mousy or musty odor of the urine, caused by the inability to metabolize phenylalanine. Maple syrup urine disease (Choice A) is characterized by a sweet-smelling urine. Tyrosinemia (Choice B) presents with cabbage-like odor in the urine. Trimethylaminuria (Choice D) results in a fishy odor in the urine, breath, and sweat.
5. What is the most common cause of seizures in children?
- A. An abrupt rise in body temperature
- B. An inflammatory process in the brain
- C. A temperature greater than 102°F
- D. A life-threatening infection
Correct answer: C
Rationale: Seizures in children most often result from a temperature greater than 102°F, known as febrile seizures. Febrile seizures are commonly triggered by a rapid increase in body temperature due to infections or other causes. Choice A is incorrect as febrile seizures are not necessarily caused by the abrupt rise in body temperature alone. Choice B is incorrect as inflammatory processes in the brain may lead to other types of seizures but are not the most common cause in children. Choice D is incorrect as not all seizures in children are due to life-threatening infections.
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