Nokea
What is the most common cause of acute gastroenteritis in children under 5 years?
- A. Salmonella
- B. Rotavirus
- C. Norovirus
- D. Shigella
Correct Answer: B
Rationale: Rotavirus is the leading cause of acute gastroenteritis in children under 5 years. It leads to severe diarrhea and dehydration. Vaccination against rotavirus has significantly reduced the incidence of this disease, but it remains a major cause of morbidity in young children globally. Salmonella and Shigella can cause gastroenteritis, but they are less common in children under 5 years. Norovirus is also a common cause of gastroenteritis, but Rotavirus is the most prevalent in this age group.
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An infant with short bowel syndrome will be on total parenteral nutrition (TPN) for an extended period of time. What should the nurse monitor the infant for?
- A. Central venous catheter infection, electrolyte losses, and hyperglycemia
- B. Hypoglycemia, catheter migration, and weight gain
- C. Venous thrombosis, hyperlipidemia, and constipation
- D. Catheter damage, red currant jelly stools, and hypoglycemia
Correct Answer: A
Rationale: Infants with short bowel syndrome requiring prolonged total parenteral nutrition (TPN) are susceptible to central venous catheter infections, electrolyte losses, and hyperglycemia. Monitoring for these complications is crucial to prevent serious outcomes. Choices B, C, and D are incorrect because they do not reflect the common complications associated with prolonged TPN in infants.
Which of the following conditions is characterized by a 'machine-like' murmur in children?
- A. Patent ductus arteriosus
- B. Ventricular septal defect
- C. Atrial septal defect
- D. Coarctation of the aorta
Correct Answer: A
Rationale: The correct answer is A, Patent ductus arteriosus. This condition is characterized by a continuous 'machine-like' murmur due to abnormal blood flow between the aorta and pulmonary artery. Ventricular septal defect (choice B) is characterized by a harsh holosystolic murmur, atrial septal defect (choice C) typically presents with a fixed split S2 and a pulmonary flow murmur, and coarctation of the aorta (choice D) is associated with a systolic murmur in the back and bilateral lower extremities.
Which factor is most likely to cause a "brittle" diabetic state in a child with type 1 diabetes?
- A. Noncompliance with diet
- B. Insulin resistance
- C. Frequent infections
- D. Hypothyroidism
Correct Answer: C
Rationale: Frequent infections can destabilize blood sugar levels, leading to a "brittle" diabetic state in children with type 1 diabetes. Infections increase metabolic demands and can result in significant blood glucose fluctuations, requiring careful monitoring and adjustment of insulin therapy. Noncompliance with diet may affect blood sugar control but is not the primary cause of a "brittle" state. Insulin resistance is more common in type 2 diabetes rather than type 1. Hypothyroidism can impact metabolism but is not directly linked to the development of a "brittle" diabetic state in type 1 diabetes.
What dietary modification is recommended for a child with cystic fibrosis?
- A. High carbohydrate
- B. Low protein
- C. High calorie
- D. Low fat
Correct Answer: C
Rationale: A high-calorie diet is recommended for children with cystic fibrosis due to their increased energy needs and malabsorption issues. Cystic fibrosis affects the pancreas, leading to poor digestion and absorption of nutrients, particularly fats, which requires dietary adjustments to maintain adequate nutrition. High carbohydrate (Choice A) is not the primary focus; the emphasis is on overall calorie intake. Low protein (Choice B) is not recommended as protein intake is essential for growth and development. Low fat (Choice D) is not the best option as fat-soluble vitamin absorption is already compromised in cystic fibrosis, hence fat restriction is not a priority.
What is the most common symptom of gastroesophageal reflux in infants?
- A. Projectile vomiting
- B. Bilious vomiting
- C. Frequent spitting up
- D. Diarrhea
Correct Answer: C
Rationale: Frequent spitting up is indeed a common symptom of gastroesophageal reflux in infants. It is caused by the backward flow of stomach contents into the esophagus, leading to infants regurgitating milk or formula shortly after feeding. Projectile vomiting (choice A) is more commonly associated with conditions like pyloric stenosis rather than gastroesophageal reflux. Bilious vomiting (choice B) often indicates an obstruction in the gastrointestinal tract. Diarrhea (choice D) is not typically a primary symptom of gastroesophageal reflux in infants.