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177948 Pathology

A 1-year-old female infant is hospitalized for pneumonia. Bacterial cultures of the sputum have grown Pseudomonas aeruginosa. She has had two prior hospitalizations for severe respiratory infections. Her mother has noted that when she kisses her child, the child tastes “salty.” The child has had weight loss that the mother attributes to frequent vomiting and diarrhea with bulky, foul-smelling fatty stools. The child is small for her age. Which of the following critical proteins is altered in this condition?

ACystic fibrosis transmembrane conductance regulator
BDystrophin
Ca-1,4-Glucosidase
Da-L-Iduronidase
Pathology
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