PANCE Exam Practice Questions: Quiz 128

A 31-year-old female complains of chest fullness after eating and progressive dysphagia of solids and liquids over the last 9 months. She has noted a nocturnal cough and also complains of substernal chest pain unrelated to meals. She has had a 10-lb unintentional weight loss. Physical examination is normal. A barium swallow study reveals esophageal dilation with peristalsis appearing diminished or absent in the distal twothirds. Which of the following is used to confirm the diagnosis?
- A. esophageal manometry
- B. computed tomography
- C. upper endoscopy
- D. 24-hour pH probe

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