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Which pediatric disorder is associated with a 'boot-shaped' heart on a chest x-ray?
- A. Tetralogy of Fallot
- B. Transposition of the great arteries
- C. Coarctation of the aorta
- D. Ventricular septal defect
Correct Answer: A
Rationale: The correct answer is A: Tetralogy of Fallot. Tetralogy of Fallot is often associated with a 'boot-shaped' heart appearance on a chest x-ray due to the characteristic heart anatomy in this condition. This appearance is caused by the combination of pulmonary stenosis, overriding aorta, ventricular septal defect, and right ventricular hypertrophy. Choice B, Transposition of the great arteries, is incorrect because it presents with a 'egg-on-a-string' appearance on x-ray due to the abnormal position of the aorta and pulmonary artery. Choice C, Coarctation of the aorta, typically presents with rib notching on x-ray. Choice D, Ventricular septal defect, does not produce the 'boot-shaped' heart appearance seen in Tetralogy of Fallot.
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The nurse is caring for an infant who had surgical repair of a tracheoesophageal fistula 24 hours ago. Gastrostomy feedings have not been started. What do nursing actions related to the gastrostomy tube include?
- A. Keep the tube clamped.
- B. Suction the tube as needed.
- C. Leave the tube open to gravity drainage.
- D. Secure the tube with tape.
Correct Answer: C
Rationale: Leaving the gastrostomy tube open to gravity drainage prevents the accumulation of air and fluids, reducing the risk of complications such as vomiting or aspiration in the immediate postoperative period. Keeping the tube clamped or suctioning it can lead to pressure buildup, increasing the risk of complications. Securing the tube with tape is important but not the primary action related to the gastrostomy tube in this case.
What is an essential nursing care intervention for a neonate with a suspected tracheoesophageal fistula?
- A. Feed glucose water only.
- B. Elevate the patient's head for feedings.
- C. Raise the patient's head and give nothing by mouth.
- D. Avoid suctioning unless the infant is cyanotic.
Correct Answer: C
Rationale: Raising the patient's head and giving nothing by mouth is crucial in managing tracheoesophageal fistula. This intervention helps prevent aspiration and further complications until surgical correction can be performed. Feeding the neonate or suctioning could exacerbate the condition by risking aspiration. Elevating the head for feedings does not address the primary concern of preventing oral intake, making it less appropriate than the correct answer.
Which electrolyte imbalance is a common concern in children with severe diarrhea?
- A. Hypernatremia
- B. Hypokalemia
- C. Hypercalcemia
- D. Hypomagnesemia
Correct Answer: B
Rationale: Hypokalemia is the correct answer because it is a common concern in children with severe diarrhea. Diarrhea can lead to significant potassium loss, resulting in hypokalemia. Hypernatremia (Choice A) is less common in diarrhea as sodium concentration is usually diluted by the fluid loss. Hypercalcemia (Choice C) is not typically associated with severe diarrhea. Hypomagnesemia (Choice D) can occur but is not as common as hypokalemia in this scenario.
What intervention is contraindicated in a suspected case of appendicitis?
- A. Enemas
- B. Palpating the abdomen
- C. Administration of antibiotics
- D. Administration of antipyretics for fever
Correct Answer: A
Rationale: Enemas are contraindicated in cases of suspected appendicitis because they can increase the risk of perforation. The pressure from the enema can exacerbate inflammation and potentially lead to the rupture of the appendix. Palpating the abdomen gently is essential for diagnosing appendicitis, as it helps identify the characteristic signs like rebound tenderness. Antibiotics are commonly used to treat the infection associated with appendicitis, and antipyretics are administered to manage fever, which is a common symptom of the condition. Therefore, enemas are the intervention to avoid in suspected appendicitis cases.
A health care provider prescribes feedings of 1 to 2 oz Pedialyte every 3 hours and to advance to 1/2 strength Similac with iron as tolerated postoperatively for an infant who had a pyloromyotomy. The nurse should decide to advance the feeding if which occurs?
- A. The infant's IV line has infiltrated.
- B. The infant has not voided since surgery.
- C. The infant's mother states the infant is tolerating the feeding okay.
- D. The infant is taking the Pedialyte without vomiting or distention.
Correct Answer: D
Rationale: The decision to advance feedings after a pyloromyotomy is based on the infant's ability to tolerate the current feedings without vomiting or abdominal distention. Ensuring the infant can keep down Pedialyte is the key indicator for moving to the next stage of feeding. Choices A, B, and C are incorrect because they do not directly relate to the infant's ability to tolerate the feeding. An infiltrated IV line, lack of voiding, or the mother's statement do not provide direct information on the infant's tolerance to the feeding, unlike the absence of vomiting and distention.