HESI LPN
Pediatric HESI Practice Questions
1. When explaining a viral disease that begins with malaise and a highly pruritic rash starting on the abdomen, spreading to the face and proximal extremities, and potentially leading to severe complications, which childhood disease is a nurse discussing with members of a grammar school’s Parent-Teachers Association?
- A. Rubella
- B. Rubeola
- C. Chickenpox
- D. Scarlet fever
Correct answer: C
Rationale: The correct answer is Chickenpox (varicella). This viral disease typically starts with malaise and a highly pruritic rash that begins on the abdomen and then spreads to the face and proximal extremities. Chickenpox can result in serious complications such as pneumonia and encephalitis. Rubella (German measles) presents with a milder rash and is less pruritic than chickenpox. Rubeola (measles) is characterized by a rash that spreads from the head to the trunk. Scarlet fever is caused by group A Streptococcus bacteria and is not a viral illness.
2. While assessing an 18-month-old child, a nurse observes that the toddler can crawl upstairs but needs assistance when climbing the stairs upright. What does this action indicate to the nurse?
- A. Presence of talipes equinovarus
- B. Reflective of neurologic damage
- C. Expected behavior in a toddler of this age
- D. Existence of developmental dysplasia of the hip
Correct answer: C
Rationale: At 18 months of age, needing assistance to climb stairs upright is considered normal behavior for a toddler. Crawling upstairs is a different motor skill and does not necessarily correlate with the ability to climb stairs. The child is still developing gross motor skills, and climbing stairs upright typically requires more coordination and strength, which may not be fully developed at this age. Choices A, B, and D are not relevant in this scenario as the observed behavior is within the expected range of development for an 18-month-old child.
3. Which observation of the exposed abdomen is most indicative of pyloric stenosis?
- A. abdominal rigidity
- B. substernal retraction
- C. palpable olive-like mass
- D. marked distention of the lower abdomen
Correct answer: C
Rationale: In pyloric stenosis, a palpable olive-like mass in the abdomen is a classic finding. This mass is due to the hypertrophied pyloric muscle. Abdominal rigidity (choice A) is associated with conditions like peritonitis, substernal retraction (choice B) is typically seen in respiratory distress, and marked distention of the lower abdomen (choice D) is more characteristic of conditions like intestinal obstruction rather than pyloric stenosis.
4. A parent tells the nurse, “My 9-month-old baby no longer has the same strong grasp that was present at birth and no longer acts startled by loud noises.†How should the nurse explain these changes in behavior?
- A. “I will check these responses before deciding how to proceed.â€
- B. “Failure of these responses may be related to a developmental delay.â€
- C. “Additional sensory stimulation is needed to aid in the return of these responses.â€
- D. “These responses are replaced by voluntary activity at about five months of age.â€
Correct answer: D
Rationale: The correct answer is D: “These responses are replaced by voluntary activity at about five months of age.†The grasp reflex and startle reflex (Moro reflex) are normal in newborns but typically disappear as the infant's nervous system matures and voluntary control develops. Choice A is incorrect because checking the responses before deciding a course of action does not address the developmental milestone related to the reflexes. Choice B is incorrect as it jumps to a conclusion of developmental delay without considering the normal developmental process. Choice C is incorrect as additional sensory stimulation is not necessary for the return of these reflexes, as they are expected to naturally diminish as part of normal development.
5. A child has been admitted to the pediatric unit with a severe asthma attack. What type of acid-base imbalance should the nurse expect the child to develop?
- A. metabolic alkalosis caused by decreased acid metabolites production
- B. respiratory alkalosis caused by decreased respiratory rate and carbon dioxide retention
- C. respiratory acidosis caused by impaired respirations and increased carbonic acid formation
- D. metabolic acidosis caused by the kidneys' inability to compensate for increased carbonic acid production
Correct answer: C
Rationale: In a severe asthma attack, the child is likely to develop respiratory acidosis due to impaired respirations leading to the retention of carbon dioxide, which combines with water to form carbonic acid. This results in the pH imbalance characterized by an excess of carbonic acid. Choices A, B, and D are incorrect. Metabolic alkalosis (Choice A) is not typically associated with severe asthma attacks; respiratory alkalosis (Choice B) would involve a decrease, not an increase, in carbon dioxide levels; and metabolic acidosis (Choice D) is not the primary acid-base imbalance seen in severe asthma attacks.
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