A 34-year-old woman comes to the clinic because of left ...

There is a family history of cystic fibrosis. Vital signs are: temperature 38.1 C (100.6 F), blood pressure 74/40 mm Hg, pulse 132/min, and respirations 21/min. On physical examination, the abdomen is distended and bowel sounds are high pitched. An x-ray of the abdomen shows multiple dilated loops of both small and large bowel. ................
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