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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What is the primary treatment goal for a child with nephrotic syndrome?
- A. Reduce proteinuria
- B. Lower blood pressure
- C. Increase urine output
- D. Prevent infections
Correct Answer: A
Rationale: The correct answer is A: Reduce proteinuria. In nephrotic syndrome, the primary treatment goal is to reduce proteinuria to prevent further kidney damage. Lowering blood pressure (choice B) is important in managing some types of kidney disease but is not the primary treatment goal in nephrotic syndrome. Increasing urine output (choice C) and preventing infections (choice D) are important aspects of supportive care but are not the primary treatment goal for nephrotic syndrome.
Which pediatric condition is most likely to present with a "whooping" sound during coughing?
- A. Croup
- B. Bronchitis
- C. Pertussis
- D. Asthma
Correct Answer: C
Rationale: The correct answer is C: Pertussis. Pertussis, also known as whooping cough, is characterized by a "whooping" sound during coughing episodes. This distinctive sound is due to the rapid intake of air after a series of coughs. Choice A, Croup, typically presents with a barking cough and stridor. Choice B, Bronchitis, is characterized by a productive cough with mucus. Choice D, Asthma, usually presents with wheezing and shortness of breath.
What is the first step in managing a child with anaphylaxis?
- A. Administer antihistamines
- B. Establish IV access
- C. Administer epinephrine
- D. Monitor vital signs
Correct Answer: C
Rationale: The correct answer is to administer epinephrine. Administering epinephrine is the crucial first step in managing anaphylaxis as it helps reverse the severe allergic reaction by constricting blood vessels and relaxing airway muscles, preventing a life-threatening situation. Antihistamines (Choice A) are not the first-line treatment for anaphylaxis and should not delay the administration of epinephrine. Establishing IV access (Choice B) may be necessary but is not the initial step in managing anaphylaxis. Monitoring vital signs (Choice D) is important but should not take precedence over administering epinephrine in the acute management of anaphylaxis.
Which condition is often associated with a "ground-glass" appearance on a chest x-ray in neonates?
- A. Pneumonia
- B. Respiratory distress syndrome
- C. Bronchopulmonary dysplasia
- D. Congenital diaphragmatic hernia
Correct Answer: B
Rationale: The correct answer is B, Respiratory distress syndrome. Respiratory distress syndrome often presents with a "ground-glass" appearance on a chest x-ray in neonates due to surfactant deficiency. Choice A, Pneumonia, typically appears as patchy infiltrates on chest x-ray. Choice C, Bronchopulmonary dysplasia, is characterized by hyperinflation and fibrosis, not a ground-glass appearance. Choice D, Congenital diaphragmatic hernia, usually shows mediastinal shift and bowel loops in the chest cavity on x-ray, not a ground-glass appearance.
What is the most effective way to prevent the spread of hand, foot, and mouth disease in a daycare setting?
- A. Handwashing
- B. Isolating sick children
- C. Disinfecting toys
- D. Encouraging vaccination
Correct Answer: A
Rationale: Handwashing is indeed the most effective way to prevent the spread of hand, foot, and mouth disease in children. Proper hand hygiene helps in removing and killing germs that can cause infections. While isolating sick children and disinfecting toys are important measures to prevent the spread of diseases, they are not as effective as handwashing. Encouraging vaccination, in this case, is not relevant since there is no specific vaccine available for hand, foot, and mouth disease.