HESI LPN
Pediatric Practice Exam HESI
1. 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 due to insufficient production of acid metabolites
- B. respiratory alkalosis due to depressed respirations and retention of carbon dioxide
- C. respiratory acidosis due to impaired respirations and increased formation of carbonic acid
- D. metabolic acidosis due to the kidneys' inability to compensate for decreased carbonic acid formation
Correct answer: C
Rationale: In a severe asthma attack, the child is likely to develop respiratory acidosis. This occurs due to impaired respirations, leading to the retention of carbon dioxide and the formation of carbonic acid. Choice A is incorrect as metabolic alkalosis is not expected in this situation. Choice B is incorrect as respiratory alkalosis does not align with the scenario of impaired respirations in severe asthma attacks. Choice D is also incorrect as it describes metabolic acidosis, which is not typically associated with severe asthma attacks.
2. A child with a diagnosis of cystic fibrosis is under the care of a nurse. What is the priority nursing intervention?
- A. Administering pancreatic enzymes
- B. Providing respiratory therapy
- C. Encouraging physical activity
- D. Encouraging frequent handwashing
Correct answer: A
Rationale: The priority nursing intervention for a child with cystic fibrosis is administering pancreatic enzymes. This is crucial for managing the condition as it helps in proper digestion of nutrients. Providing respiratory therapy and encouraging physical activity are important aspects of care for cystic fibrosis, but administering pancreatic enzymes takes precedence due to its direct impact on the child's ability to digest and absorb essential nutrients. Encouraging frequent handwashing is a good practice for infection control but is not the priority intervention in this scenario.
3. The nurse is conducting a physical examination of a 9-month-old baby with a flat, discolored area on the skin. The nurse documents this as a:
- A. Papule
- B. Macule
- C. Vesicle
- D. Scale
Correct answer: B
Rationale: A macule is defined as a flat, discolored area on the skin that is different from surrounding tissue due to a change in color. In this case, the baby has a flat, discolored area on the skin, which fits the description of a macule. A papule is a small, raised solid bump, a vesicle is a small fluid-filled blister, and a scale is a flake of skin that is often dry and rough. Therefore, choices A, C, and D do not accurately describe the flat, discolored area on the baby's skin, making them incorrect.
4. In an adolescent suspected of having type 1 diabetes mellitus, which clinical manifestation may be present?
- A. moist skin
- B. weight gain
- C. fluid overload
- D. poor wound healing
Correct answer: D
Rationale: Poor wound healing is a common clinical manifestation of type 1 diabetes mellitus. Elevated blood glucose levels in diabetes can lead to impaired wound healing by affecting various cellular processes involved in the healing cascade. Moist skin (Choice A) is not typically associated with type 1 diabetes mellitus. Weight gain (Choice B) is more commonly seen in type 2 diabetes due to insulin resistance. Fluid overload (Choice C) is not a typical clinical manifestation of type 1 diabetes mellitus. Therefore, the correct answer is poor wound healing.
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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