HESI LPN
Pediatric Practice Exam HESI
1. When assessing a child with a possible fracture, what would be the most reliable indicator for the nurse to identify?
- A. Lack of spontaneous movement
- B. Point tenderness
- C. Bruising
- D. Inability to bear weight
Correct answer: B
Rationale: Point tenderness is the most reliable indicator of a possible fracture in a child. It refers to localized pain at a specific point, indicating a potential bone injury. Lack of spontaneous movement (Choice A) is non-specific and can be due to various reasons. Bruising (Choice C) may be present in fractures but is not as specific as point tenderness. Inability to bear weight (Choice D) can also be seen in fractures but may not always be present, making it less reliable compared to point tenderness.
2. 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.
3. A newborn is diagnosed with metatarsus adductus. The parents ask the nurse how this occurred. Which response by the nurse would be most appropriate?
- A. This condition is due to a genetic defect in the bones.
- B. It's most likely from how the baby was positioned in utero.
- C. They really don't know what causes this condition.
- D. There is probably an underlying deformity of the baby's hip.
Correct answer: B
Rationale: Metatarsus adductus is a condition characterized by the inward turning of the front part of the foot. It is often caused by the baby's position in the womb, leading to the foot adopting this position. Choice A is incorrect because metatarsus adductus is primarily related to positioning in utero rather than a genetic defect. Choice C is incorrect as there is an understanding of the common cause of this condition. Choice D is incorrect because metatarsus adductus specifically refers to a foot deformity, not a hip deformity.
4. 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.
5. What explanation should the nurse give a parent about the purpose of a tetanus toxoid injection for their child?
- A. Passive immunity is conferred temporarily.
- B. Long-lasting active immunity is conferred.
- C. Lifelong active natural immunity is conferred.
- D. Passive natural immunity is conferred temporarily.
Correct answer: B
Rationale: The correct answer is B: Long-lasting active immunity is conferred. Tetanus toxoid injection works by stimulating the child's body to produce its antibodies, providing long-lasting active immunity. Choice A is incorrect because passive immunity is not conferred for life; it is temporary and involves receiving antibodies rather than producing them internally. Choice C is incorrect as the immunity conferred by the tetanus toxoid injection is not lifelong natural immunity but rather active immunity stimulated by the body's immune response. Choice D is also incorrect since passive natural immunity is not conferred by the tetanus toxoid injection, and it is not temporary.
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