A 3-year -old boy with a history of recurrent upper respiratory infections and chronic diarrhea is brought to the physician because of weight loss, irritability, fever, and a productive cough. Physical
examination shows intercostal retractions, and wheezing and rhonchi are heard on auscultation of the chest. Nose examination shows the appearance of nasal polyps. A chest x-ray shows patchy
infiltrates and atelectasis. Gram stain and culture of the sputum shows non-lactose fermenting, gram-negative rods. Which of the following is the most important pathogenic attribute of the most
likely causal organism in this patient?
- 0 A. Catalase
- 0 B. Oxidase
- 0 C. Pigment formation
- 0 D. Polysaccharide capsule
- 0 E. Toxin
0 voters
A 3-year -old boy with a history of recurrent upper respiratory infections and chronic diarrhea is brought to the physician because of weight loss, irritability, fever, and a productive cough. Physical
examination shows intercostal retractions, and wheezing and rhonchi are heard on auscultation of the chest. Nose examination shows the appearance of nasal polyps. A chest x-ray shows patchy
infiltrates and atelectasis. Gram stain and culture of the sputum shows non-lactose fermenting, gram-negative rods. Which of the following is the most important pathogenic attribute of the most
likely causal organism in this patient?
- 0 A. Catalase
- 0 B. Oxidase
- 0 C. Pigment formation
- 0 D. Polysaccharide capsule
- 0 E. Toxin
0 voters
12-year-old boy is brought to the emergency department due to postprandial, colicky abdominal pain and bilious vomiting. He has
not had similar symptoms before and has no other medical issues. The patient had a bicycle accident 2 days ago when he stopped
abruptly and fell into the handlebar. He immediately experienced abdominal pain but started to feel better several hours later. His
vital signs are normal. Physical examination shows tenderness in the epigastric area. Bowel sounds are normal. Bedside
uttrasonography does not demonstrate free intraperitoneal fluid. Plain abdominal radiograph shows dilated stomach with scanty distal
gas. Laboratory results are as follows:
Hemoglobin 13.8g/dL
Leukocytes 8000/mm•
Total bilirubin 1.3 mg/dL
Amylase 91 U/L
Which of the following is the most likely diagnosis for this patient?
- Q A Duodenal hematoma
- 0 8. Liver laceration
- 0 C . Pancreatic pseudocyst
- 0 D. Pyloric stenosis
- 0 E. Small-bowel perforation
0 voters