HESI LPN
Pediatrics HESI 2023
1. An 8-year-old child diagnosed with meningitis is to undergo a lumbar puncture. What should the nurse explain is the purpose of this procedure?
- A. To measure the pressure of cerebrospinal fluid
- B. To obtain a sample of cerebrospinal fluid for analysis
- C. To relieve intracranial pressure
- D. To assess the presence of infection in the spinal fluid
Correct answer: B
Rationale: A lumbar puncture is performed to obtain a sample of cerebrospinal fluid for analysis. This fluid is then examined for signs of infection, bleeding, or other abnormalities. Measuring the pressure of cerebrospinal fluid is typically done during the procedure itself, but it is not the primary purpose of the lumbar puncture. While a lumbar puncture can indirectly help relieve intracranial pressure by removing excess cerebrospinal fluid, this is not its primary purpose. Assessing the presence of infection in the spinal fluid is part of the analysis that follows the collection of the sample, making it a secondary outcome of the procedure.
2. What explanation should the nurse provide to the parents of a 6-month-old infant diagnosed with cystic fibrosis?
- A. It is a condition affecting the respiratory and digestive systems.
- B. It is an autoimmune disorder affecting multiple organs.
- C. It is a genetic disorder that can be managed with medication.
- D. It is a condition caused by prenatal exposure to toxins.
Correct answer: A
Rationale: The correct answer is A. Cystic fibrosis is a genetic disorder that primarily affects the respiratory and digestive systems. It results in the production of thick, sticky mucus that can clog the lungs and obstruct the pancreas. This explanation is crucial for parents to understand the impact of the condition on their child's health. Choice B is incorrect because cystic fibrosis is not an autoimmune disorder. Choice C is partially correct in that cystic fibrosis is a genetic disorder, but it requires a comprehensive management approach beyond just medication. Choice D is incorrect as cystic fibrosis is not caused by prenatal exposure to toxins but rather by inheriting specific genetic mutations.
3. What is the priority intervention for a 10-year-old girl in a foster family?
- A. Determining if the child is being bullied at school
- B. Dealing with mixed parental expectations
- C. Establishing the child's primary caretaker
- D. Performing a comprehensive health assessment
Correct answer: D
Rationale: In a foster family setup, the priority intervention for a 10-year-old girl is to perform a comprehensive health assessment. This is crucial as children in foster care may have moved between different homes, leading to incomplete medical records. A comprehensive health assessment helps identify any health issues, track the child's growth and development, and ensure appropriate medical care. While addressing bullying at school, managing parental expectations, and establishing the primary caretaker are important considerations, the immediate priority for the child's well-being and holistic care is to conduct a thorough health assessment.
4. Which best describes a full-thickness (third-degree) burn?
- A. Erythema and pain
- B. Skin showing erythema followed by blister formation
- C. Destruction of all layers of skin evident with extension into subcutaneous tissue
- D. Destruction injury involving underlying structures such as muscle, fascia, and bone
Correct answer: C
Rationale: The correct answer is C: Full-thickness burns involve the destruction of all layers of skin, extending into the subcutaneous tissue. This type of burn causes severe damage and loss of sensation due to nerve destruction. Choice A, erythema and pain, describes superficial burns (first-degree). Choice B, skin showing erythema followed by blister formation, describes partial-thickness burns (second-degree). Choice D, destruction injury involving underlying structures such as muscle, fascia, and bone, goes beyond the description of full-thickness burns.
5. An instructor is developing a plan for a class of nursing students on various skin disorders. When describing urticaria, what would the instructor include?
- A. It is a type IV hypersensitivity reaction.
- B. Histamine release leads to vasodilation.
- C. Wheals appear first followed by erythema.
- D. The nonpruritic rash blanches with pressure.
Correct answer: B
Rationale: The correct answer is B. Urticaria is a type I hypersensitivity reaction, not type IV. When triggered, histamine release leads to vasodilation, causing characteristic wheals. Wheals are typically followed by erythema. The rash in urticaria is pruritic and does blanch with pressure, unlike the nonpruritic rash described in choice D. Therefore, the most appropriate description of urticaria includes histamine release and vasodilation, as stated in choice B.
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