HESI LPN
Pediatrics HESI 2023
1. A child with a diagnosis of pyloric stenosis is scheduled for surgery. What preoperative intervention is important for the nurse to perform?
- A. Administering intravenous fluids
- B. Monitoring for signs of infection
- C. Monitoring for signs of dehydration
- D. Monitoring for signs of pain
Correct answer: C
Rationale: The correct preoperative intervention for a child with pyloric stenosis is to monitor for signs of dehydration. Pyloric stenosis involves the obstruction of the pyloric sphincter, leading to projectile vomiting, which can result in dehydration and electrolyte imbalances. Monitoring for signs of dehydration is crucial to assess the child's fluid status and prevent complications. Administering intravenous fluids, although important in managing dehydration, is not typically a preoperative intervention but rather a treatment during or after surgery. Monitoring for signs of infection and pain may also be important but are not the priority preoperative interventions in a child with pyloric stenosis.
2. A child with a diagnosis of leukemia is receiving chemotherapy. What is the most important nursing intervention?
- A. Monitor for signs of infection
- B. Monitor for signs of bleeding
- C. Monitor for signs of dehydration
- D. Monitor for signs of pain
Correct answer: A
Rationale: The correct answer is to monitor for signs of infection. When a child is undergoing chemotherapy, their immune system is compromised, making them more susceptible to infections. Monitoring for signs of infection is crucial to promptly identify and treat any potential infections. Choices B, C, and D are incorrect because although monitoring for bleeding, dehydration, and pain are important aspects of care, the priority for a child receiving chemotherapy is to prevent and detect infections due to their increased vulnerability.
3. 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.
4. What finding would the nurse expect to assess in a child with hypothyroidism?
- A. Nervousness
- B. Heat intolerance
- C. Smooth velvety skin
- D. Weight gain
Correct answer: D
Rationale: Weight gain is the expected finding in a child with hypothyroidism. Hypothyroidism leads to a slowed metabolism, which can result in weight gain. Choices A, B, and C are not typical findings in hypothyroidism. Nervousness and heat intolerance are more commonly associated with hyperthyroidism, where the body is in a state of overactivity. Smooth velvety skin is not a characteristic sign of hypothyroidism.
5. 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.
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