HESI LPN
Pediatrics HESI 2023
1. A nurse is caring for an infant with intractable vomiting. For what complication is it most important for the nurse to assess?
- A. Acidosis
- B. Alkalosis
- C. Hyperkalemia
- D. Hypernatremia
Correct answer: B
Rationale: When an infant experiences intractable vomiting, it can lead to the loss of stomach acids, resulting in metabolic alkalosis. Alkalosis is characterized by elevated blood pH and can lead to serious complications. Assessing for alkalosis is essential in this scenario to monitor and manage the infant's condition. Choices A, C, and D are incorrect because in this context, the primary concern is the metabolic imbalance caused by excessive vomiting, leading to alkalosis rather than acidosis, hyperkalemia, or hypernatremia.
2. What is the priority nursing intervention for a child with a diagnosis of acute lymphoblastic leukemia (ALL) receiving chemotherapy?
- A. Preventing infection
- B. Administering chemotherapy
- C. Providing nutritional support
- D. Monitoring fluid intake
Correct answer: A
Rationale: The correct answer is A: Preventing infection. When caring for a child with acute lymphoblastic leukemia (ALL) undergoing chemotherapy, the top priority is to prevent infection. Chemotherapy suppresses the immune system, making the child more susceptible to infections. By implementing infection control measures such as hand hygiene, aseptic techniques, and environmental cleanliness, the nurse can help protect the child from potentially life-threatening infections. Administering chemotherapy (choice B) is important but not the priority over preventing infection. Providing nutritional support (choice C) and monitoring fluid intake (choice D) are essential aspects of care but take a back seat to preventing infection in this scenario.
3. What definitive diagnostic procedure does the nurse expect to be used to confirm the diagnosis of Hirschsprung disease in a 1-month-old infant?
- A. Colonoscopy
- B. Rectal biopsy
- C. Multiple saline enemas
- D. Fiberoptic nasoenteric tube
Correct answer: B
Rationale: Rectal biopsy is the definitive diagnostic procedure for Hirschsprung disease in infants. This procedure reveals the absence of ganglion cells in the affected bowel segment, which is a hallmark of Hirschsprung disease. Colonoscopy (Choice A) is not typically used for diagnosing Hirschsprung disease due to the risk of not accurately reaching the affected segment. Multiple saline enemas (Choice C) are not used to confirm the diagnosis of Hirschsprung disease. Fiberoptic nasoenteric tube (Choice D) is not a standard diagnostic procedure for Hirschsprung disease and does not provide the necessary information to confirm the absence of ganglion cells in the affected bowel segment.
4. What are general guidelines when assessing a 2-year-old child with abdominal pain and adequate perfusion?
- A. Examining the child in the parent's arms
- B. Palpating the painful area of the abdomen first
- C. Placing the child supine and palpating the abdomen
- D. Separating the child from the parent to ensure a reliable examination
Correct answer: A
Rationale: When assessing a 2-year-old child with abdominal pain and adequate perfusion, it is important to examine the child in the parent's arms. This approach helps reduce the child's anxiety, provides comfort, and can facilitate a more accurate assessment. Palpating the painful area of the abdomen first (choice B) may cause discomfort and increase anxiety in the child. Placing the child supine and palpating the abdomen (choice C) without considering the child's comfort and security may lead to resistance and inaccurate assessment. Separating the child from the parent to ensure a reliable examination (choice D) can further increase anxiety and hinder the assessment process. Therefore, examining the child in the parent's arms (choice A) is the most appropriate and effective approach in this scenario.
5. The nurse is admitting a newborn with hypospadias to the nursery. The nurse expects which finding in this newborn?
- A. absence of a urethral opening
- B. penis appears shorter than usual for age
- C. the urethral opening is along the dorsal surface of the penis
- D. the urethral opening is along the ventral surface of the penis
Correct answer: D
Rationale: Hypospadias is a congenital condition where the urethral opening is located along the ventral surface of the penis, not the dorsal surface (Choice C) or absent (Choice A). This leads to the characteristic appearance of a ventrally displaced urethral meatus. The penis may appear normal in size but with the urethral opening positioned abnormally (Choice D), rather than being shorter than usual (Choice B). Therefore, the correct expectation for a newborn with hypospadias is that the urethral opening is along the ventral surface of the penis, making Choice D the correct answer.
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