Nokea
What signs or symptoms are most commonly associated with the prodromal phase of acute viral hepatitis?
- A. Bruising and lethargy
- B. Anorexia and malaise
- C. Fatigability and jaundice
- D. Dark urine and pale stools
Correct Answer: B
Rationale: The correct answer is B: Anorexia and malaise. The prodromal phase of acute viral hepatitis is characterized by nonspecific symptoms such as anorexia (loss of appetite) and malaise (general feeling of discomfort). These symptoms typically precede the more specific signs of jaundice, dark urine, and pale stools that manifest in the icteric phase. Choices A, C, and D are incorrect because bruising and lethargy, fatigability and jaundice, and dark urine and pale stools are typically seen in later stages of acute viral hepatitis, not in the prodromal phase.
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What is typically the first sign of puberty in females?
- A. Breast development
- B. Menarche
- C. Pubic hair growth
- D. Axillary hair growth
Correct Answer: A
Rationale: The correct answer is A: Breast development (thelarche) is usually the first sign of puberty in females, typically beginning between ages 8 and 13. This marks the start of puberty, followed by pubic hair growth, a growth spurt, and eventually menarche (the onset of menstruation). Pubic hair growth and axillary hair growth usually follow breast development in the sequence of pubertal changes. Therefore, the first noticeable change indicating the onset of puberty in females is the development of breast buds.
What is the best indicator of fluid balance in a pediatric patient?
- A. Blood pressure
- B. Heart rate
- C. Weight
- D. Urine output
Correct Answer: C
Rationale: Weight is the most accurate indicator of fluid balance in pediatric patients. Changes in weight reflect shifts in body fluid levels more directly compared to other parameters. Blood pressure and heart rate may be affected by various factors other than fluid balance. While urine output is important in assessing renal function, it may not provide a comprehensive picture of overall fluid balance in pediatric patients.
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.
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.
Which condition is characterized by a 'seal-like' barking cough in children?
- A. Croup
- B. Asthma
- C. Bronchitis
- D. Pneumonia
Correct Answer: A
Rationale: Croup is the correct answer. Croup is characterized by a 'seal-like' barking cough due to inflammation and narrowing of the upper airways, particularly the larynx and trachea. It is most common in young children and can cause significant respiratory distress, especially at night. Treatment often includes humidified air and corticosteroids. Asthma (choice B) typically presents with wheezing and shortness of breath, not a barking cough. Bronchitis (choice C) is characterized by productive cough with mucus, not a barking cough. Pneumonia (choice D) often presents with fever, productive cough, and chest pain, not a barking cough.