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. A child with Duchenne muscular dystrophy is to receive prednisone as part of their treatment plan. After teaching the child's parents about this drug, which statement by the parents indicates the need for additional teaching?
- A. We should give this drug after he eats something.
- B. We need to watch carefully for possible infections.
- C. The drug should not be stopped abruptly.
- D. He might experience weight gain with this drug.
Correct answer: A
Rationale: The correct statement should be, 'We should give this drug after he eats something.' Prednisone should be administered with food to help prevent gastrointestinal upset. Choice B is correct as monitoring for infections is important due to prednisone's immunosuppressive effects. Choice C is correct as prednisone should not be stopped suddenly to prevent withdrawal symptoms. Choice D is correct as weight gain is a common side effect of prednisone.
3. The healthcare professional is preparing a presentation to a local community group about genetic disorders and the types of congenital anomalies that can occur. What would the professional include as a major congenital anomaly?
- A. Overlapping digits
- B. Polydactyly
- C. Umbilical hernia
- D. Cleft palate
Correct answer: D
Rationale: Cleft palate is considered a major congenital anomaly due to its significant impact on feeding, speech, and overall health. Overlapping digits (Option A) are a physical anomaly but not typically considered a major congenital anomaly. Polydactyly (Option B) refers to having extra fingers or toes, which is a congenital anomaly but not as major as a cleft palate. Umbilical hernia (Option C) involves a protrusion of abdominal contents through the umbilical ring but is not typically classified as a major congenital anomaly compared to cleft palate.
4. What is an important nursing responsibility when a dysrhythmia is suspected?
- A. order an immediate electrocardiogram
- B. count the radial pulse every 1 minute for five times
- C. count the apical pulse for 1 full minute, and compare the rate with the radial pulse rate
- D. have someone else take the radial pulse simultaneously with the apical pulse
Correct answer: C
Rationale: When a dysrhythmia is suspected, an important nursing responsibility is to count the apical pulse for 1 full minute and then compare this rate with the radial pulse rate. This method helps in identifying dysrhythmias as it allows for a direct comparison of the heart's rhythm at two different pulse points. Ordering an immediate electrocardiogram (Choice A) may be necessary but should not be the first step. Counting the radial pulse multiple times (Choice B) is not as accurate as comparing rates directly. Having someone else take the radial pulse simultaneously (Choice D) may introduce errors and inconsistencies in the measurement.
5. The nurse is teaching a group of students about myelination in a child. Which statement by the students indicates that the teaching was successful?
- A. Myelination continues into adolescence and beyond.
- B. The process occurs in a cephalocaudal (head-to-toe) pattern.
- C. Myelination decreases the speed of nerve impulses.
- D. Myelination decreases the specificity of nerve impulses.
Correct answer: B
Rationale: The correct answer is B. Myelination occurs in a cephalocaudal (head-to-toe) pattern, improving nerve function progressively. Choice A is incorrect as myelination continues into adolescence and beyond, not just during childhood. Choice C is incorrect because myelination actually increases the speed of nerve impulses rather than decreasing it. Choice D is incorrect as myelination enhances the specificity of nerve impulses, making them more efficient and precise rather than less specific.
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