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1. What is pyloric stenosis?
A. Congenital absence of the pylorus
B. Progressive narrowing of the pyloric canal occurring during infancy
C. Inflammation of the duodenum
D. Obstruction due to gallstones
2. Which of the following is a hallmark sign of pyloric stenosis?
A. Bilious vomiting and distended abdomen
B. Diarrhea and dehydration
C. Projectile postprandial non-bilious vomiting with a palpable olive-
shaped mass in the RUQ
D. Bloody stools and lethargy
3. What risk factors are associated with pyloric stenosis?
A. Male gender, second-born child, low birth weight
B. Firstborn child, formula feeding, family history, preterm infant, C-
section, multiple gestation
C. Maternal diabetes, breastfeeding, female infant
D. Advanced maternal age
, 4. Pinworm infection is caused by which organism?
A. Ascaris lumbricoides
B. Giardia lamblia
C. Enterobius vermicularis
D. Taenia saginata
5. What is the most common symptom of pinworm infection?
A. Abdominal pain
B. Perianal itching, especially at night
C. Persistent cough
D. Nausea and vomiting
6. What is the recommended treatment for pinworm infection?
A. Metronidazole for 7 days
B. Mebendazole once
C. Pyrantel pamoate 1 mg/kg (max 1 g) or Albendazole 400 mg — repeat
dose in 2 weeks for entire household
D. Amoxicillin 500 mg BID for 10 days
7. What is the standard duration for H. pylori quadruple therapy?
A. 7 days
B. 10 days
C. 14 days
D. 21 days
8. Which of the following regimens is appropriate for H. pylori eradication?
A. PPI + Clarithromycin only
B. PPI + Amoxicillin + Metronidazole + Clarithromycin (PAMC)