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 #858447  
  usmlept - 06/16/19 15:29
 
  what is the dx??


--->A 2-month-old boy is brought to the physician because of a 6-week history of persistent diarrhea and vomiting, most
pronounced after formula feedings. He has had a 113-g (4-oz) weight loss since birth. He currently weighs 3100 g
(6 lb 13 oz) and is 51 cm (20 in) in length. He appears irritable. Examination shows jaundice. The lungs are clear to
auscultation. No murmurs are heard. The liver is palpated 2 to 3 cm below the right costal margin, and the spleen is palpated
1 to 2 cm below the left costal margin. Laboratory studies show:
Serum
Glucose 35 mg/dL
Bilirubin (total) 2.3 mg/dL
Urine
Glucose negative
Reducing substances 3+
Which of the following is the most likely mechanism of these findings?
(A) Decreased gluconeogenesis
(B) Decreased insulin secretion
(C) Increased glucagon secretion
(D) Increased gluconeogenesis
(E) Increased insulin secretion
(F) Insulin resistance
 
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