HESI LPN
Pediatric Practice Exam HESI
1. What behavior is essential for preventing in a child postoperatively after undergoing heart surgery to repair defects associated with tetralogy of Fallot?
- A. Crying
- B. Coughing
- C. Straining at stool
- D. Unnecessary movement
Correct answer: C
Rationale: Preventing straining at stool is crucial postoperatively after heart surgery for tetralogy of Fallot to avoid increasing intrathoracic pressure and placing stress on the surgical site. This can help prevent complications and promote faster healing. While crying, coughing, and unnecessary movement are common postoperative behaviors, they are not specifically linked to worsening outcomes in this context. Straining at stool is particularly emphasized due to its potential to impact the surgical site and overall recovery process.
2. Based on developmental norms for a 5-year-old child, at what apical pulse did the nurse decide to withhold a scheduled dose of digoxin (Lanoxin) elixir and notify the health care provider?
- 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 a reason to withhold digoxin. Digoxin is a medication commonly used to treat heart conditions, and its administration is based on heart rate parameters. A pulse rate below 90 beats/min indicates bradycardia. In pediatric patients, bradycardia below this threshold may be a sign of toxicity or potential adverse effects of digoxin, necessitating withholding the medication and informing the healthcare provider. Choices A, B, and D are incorrect as they represent pulse rates above the threshold for withholding digoxin in a 5-year-old child.
3. The parents of an infant ask the nurse why their baby is scheduled to receive the intramuscular polio vaccine rather than the oral vaccine. What is the nurse’s best response?
- A. The American Academy of Pediatrics recommends the intramuscular vaccine because it is safer.
- B. The consensus is that either can be used, since both produce the same results and are equally safe.
- C. The oral vaccine is more expensive, so the intramuscular vaccine is preferred unless it is contraindicated.
- D. The U.S. Centers for Disease Control and Prevention recommends the intramuscular vaccine unless the infant or a family member is immunocompromised.
Correct answer: A
Rationale: The American Academy of Pediatrics recommends the intramuscular polio vaccine because it has a better safety profile compared to the oral vaccine. Choice B is incorrect because the AAP specifically recommends the intramuscular vaccine over the oral vaccine. Choice C is incorrect as cost is not the primary reason for preferring the intramuscular vaccine. Choice D is incorrect as the recommendation is based on safety rather than the immunocompromised status of the infant or family members.
4. A newborn is admitted to the neonatal intensive care unit (NICU) with choanal atresia. Which part of the infant’s body should the nurse assess?
- A. Rectum
- B. Nasopharynx
- C. Intestinal tract
- D. Laryngopharynx
Correct answer: B
Rationale: Choanal atresia is a congenital condition characterized by the blockage of the nasal passages, specifically the choanae that connect the nasal cavity to the nasopharynx. The nurse should assess the nasopharynx to identify any obstruction, confirm the diagnosis, and assess the severity of the condition. Choices A, C, and D are incorrect as they do not pertain to choanal atresia. Choanal atresia specifically involves the nasal passages and nasopharynx, not the rectum, intestinal tract, or laryngopharynx.
5. 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.”
- B. “Failure of these responses may be related to a developmental delay.”
- C. “Additional sensory stimulation is needed to aid in the return of these responses.”
- D. “These responses are replaced by voluntary activity at about five months of age.”
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.
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