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Pediatric HESI Test Bank
1. Which cardiac defects are associated with tetralogy of Fallot?
- A. Right ventricular hypertrophy, atrial and ventricular defects, and mitral valve stenosis
- B. Origin of the aorta from the right ventricle and of the pulmonary artery from the left ventricle
- C. Right ventricular hypertrophy, ventricular septal defect, pulmonic stenosis, and overriding aorta
- D. Altered connection between the pulmonary artery and the aorta, right ventricular hypertrophy, and an atrial septal defect
Correct answer: C
Rationale: Tetralogy of Fallot is characterized by a combination of four specific cardiac defects: right ventricular hypertrophy, ventricular septal defect, pulmonic stenosis, and overriding aorta. Choice A is incorrect as it includes mitral valve stenosis, which is not typically part of tetralogy of Fallot. Choice B describes transposition of the great arteries rather than tetralogy of Fallot. Choice D includes an atrial septal defect, which is not part of the classic presentation of tetralogy of Fallot.
2. What intervention best meets a major developmental need of a newborn in the immediate postoperative period?
- A. Giving a pacifier to the newborn
- B. Putting a mobile over the newborn’s crib
- C. Providing the newborn with a soft, cuddly toy
- D. Warming the newborn’s formula before feeding
Correct answer: A
Rationale: The correct answer is giving a pacifier to the newborn. Sucking is a natural reflex and a source of comfort for newborns, especially postoperatively. A pacifier can help meet their developmental needs by providing soothing comfort. Choices B, C, and D do not directly address the major developmental need related to the newborn's comfort and reflexes postoperatively. Putting a mobile over the crib, providing a cuddly toy, or warming formula, although potentially beneficial in other contexts, do not specifically target the developmental need of sucking for comfort. Offering a pacifier is a safe and effective way to address this developmental need in newborns.
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 group of students is reviewing information about the various types of insulin used to treat type 1 diabetes. The students demonstrate understanding of the information when they identify which of these insulins as having the longest duration.
- A. Lispro
- B. Regular
- C. NPH
- D. Glargine
Correct answer: D
Rationale: The correct answer is Glargine (Lantus) as it has the longest duration of action among the insulins listed, lasting 12 to 24 hours. Lispro (Humalog) and Regular (short-acting) insulins have shorter durations of action, typically lasting 3 to 6 hours. NPH (Neutral Protamine Hagedorn) insulin has an intermediate duration of action, lasting around 12 to 18 hours. Therefore, choices A, B, and C are incorrect in the context of insulin duration.
5. Why does a cleft lip predispose an infant to infection, concerning a nurse caring for the infant?
- A. Waste products accumulate along the defect.
- B. There is inadequate circulation in the defective area.
- C. Nutrition is inadequate due to ineffective feeding.
- D. Mouth breathing dries the oropharyngeal mucous membranes.
Correct answer: D
Rationale: Mouth breathing due to a cleft lip can dry the mucous membranes, increasing their susceptibility to infection. While waste product accumulation (Choice A) and inadequate circulation (Choice B) may contribute to complications, they are not directly related to infection in this context. Inadequate nutrition (Choice C) may affect overall health but is not the primary reason for infection predisposition in this case.
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