Pediatric HESI Test Bank

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.

Correct Answer: A

Rationale: The correct answer is A: Risk for impaired skin integrity due to the cast and its location. When a child has a long-leg hip spica cast, the priority nursing diagnosis is to prevent impaired skin integrity. This is because the child's mobility is restricted, and pressure from the cast can lead to skin breakdown. Option B is incorrect as while education is essential, it is not the priority when skin integrity is at risk. Option C is incorrect because while immobility can impact development, immediate skin integrity concerns take precedence. Option D is incorrect as self-care deficit, while important, is secondary to preventing skin breakdown in this scenario.

Correct Answer: B

Rationale: Chest tubes are necessary after open-heart surgery to facilitate the drainage of air and fluid from the chest cavity. These tubes help prevent complications such as pneumothorax (accumulation of air in the pleural space) or cardiac tamponade (build-up of fluid in the pericardial sac), which can be serious postoperative issues. Options A, C, and D are incorrect because chest tubes are primarily used for draining purposes and not for increasing tidal volumes, maintaining positive intrapleural pressure, or regulating pressure on the pericardium and chest wall.

Correct Answer: A

Rationale: The primary goal of therapy during the acute phase of Kawasaki disease is to prevent coronary artery aneurysms, which are a serious complication of this condition. Coronary artery aneurysms can lead to long-term cardiovascular issues, making prevention crucial. While reducing fever and improving cardiac function are important aspects of managing Kawasaki disease, the primary focus in the acute phase is on preventing coronary artery aneurysms. Dehydration prevention is also essential but not the primary goal during the acute phase of this disease.

Correct Answer: B

Rationale: Upright positioning is the most appropriate intervention to promote maximum chest expansion in a child with Duchenne muscular dystrophy. By keeping the child in an upright position, lung expansion is maximized, which improves breathing efficiency. Deep-breathing exercises may help with overall lung function but do not directly promote chest expansion. Coughing and chest percussion are more related to airway clearance and do not specifically address maximizing chest expansion.