HESI LPN
Pediatrics HESI 2023
1. A healthcare provider is discussing the care of an infant with colic with the parents. What should the healthcare provider explain is the cause of colicky behavior?
- A. Inadequate peristalsis
- B. Paroxysmal abdominal pain
- C. An allergic response to certain proteins in milk
- D. A protective mechanism designed to eliminate foreign proteins
Correct answer: B
Rationale: Colicky behavior in infants is primarily characterized by paroxysmal abdominal pain, resulting in excessive crying and fussiness. The pain episodes are often unpredictable and can be distressing for both the infant and the parents. Inadequate peristalsis (Choice A) refers to weak or ineffective bowel movements and is not the typical cause of colic. While some infants may experience colic due to an allergic response to certain proteins in milk (Choice C), this is not the primary cause of colic behavior in all infants. Choice D, a protective mechanism designed to eliminate foreign proteins, is not a recognized cause of colic. Therefore, the correct explanation for the cause of colicky behavior in infants is paroxysmal abdominal pain.
2. A healthcare professional is reviewing the laboratory report of a child with tetralogy of Fallot that indicates an elevated RBC count. What does the professional identify as the cause of the polycythemia?
- A. Low tissue oxygen needs
- B. Tissue oxygen needs
- C. Diminished iron level
- D. Hypertrophic cardiac muscle
Correct answer: B
Rationale: The correct answer is B: Tissue oxygen needs. Polycythemia occurs as the body's response to chronic hypoxia by increasing RBC production to enhance oxygen delivery. In tetralogy of Fallot, a congenital heart defect, the heart's structure causes reduced oxygen levels in the blood. This chronic hypoxia stimulates the bone marrow to produce more red blood cells, leading to an elevated RBC count. Choice A is incorrect as low blood pressure is not directly related to polycythemia in this context. Choice C, diminished iron level, is not the cause of polycythemia in tetralogy of Fallot. Choice D, hypertrophic cardiac muscle, is not the primary cause of the elevated RBC count in this case.
3. What is an important nursing responsibility when a dysrhythmia is suspected?
- A. Order an immediate electrocardiogram
- B. Count the radial pulse every 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, it is important for nurses to count the apical pulse for a full minute and compare it with the radial pulse rate. This method helps in identifying dysrhythmias because discrepancies between the apical and radial pulse rates can indicate irregular heart rhythms. Option A is incorrect because ordering an immediate electrocardiogram may not always be feasible or necessary as a first step. Option B, counting the radial pulse multiple times, is less accurate than comparing the apical and radial pulse rates. Option D involves an unnecessary step of having another person take simultaneous pulses when the nurse can do it effectively alone.
4. Based on developmental norms for a 5-year-old child, a healthcare professional decides to withhold a scheduled dose of digoxin (Lanoxin) elixir and notify the healthcare provider. Below what apical pulse did the healthcare professional withhold the medication?
- A. 60 beats/min
- B. 70 beats/min
- C. 90 beats/min
- D. 100 beats/min
Correct answer: C
Rationale: For a 5-year-old child, an apical pulse below 90 beats/min is an indicator to withhold digoxin. Digoxin is a medication that affects the heart, and in pediatric patients, monitoring the pulse rate is crucial due to the risk of bradycardia (slow heart rate) as a potential side effect. In this case, an apical pulse of 90 beats/min or lower indicates a heart rate that may be too slow for a child of this age, warranting the withholding of digoxin and prompt notification of the healthcare provider. Choices A, B, and D are not within the critical range specified for withholding digoxin in a 5-year-old child and would not necessitate withholding the medication.
5. When the working mother of a toddler is preparing to take her child home after a prolonged hospitalization, she asks the nurse what type of behavior she should expect to be displayed. What is the nurse’s most appropriate description of her child’s probable behavior?
- A. Excessively demanding behavior
- B. Hostile attitude toward the mother
- C. Cheerful, with shallow attachment behaviors
- D. Withdrawn, without emotional ties to the mother
Correct answer: A
Rationale: After a prolonged hospitalization, a toddler may exhibit excessively demanding behavior as they readjust to being home. This behavior can stem from the child feeling insecure or anxious about the changes in their environment. The child may seek extra attention and reassurance during this transition period. Choices B, C, and D are incorrect because hostility, shallowness in attachment, and withdrawal without emotional ties are less likely behaviors to be displayed by a toddler readjusting to home after a hospital stay.
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