Which of the following are used to diagnose GER? 1. Esophageal pH testing 2. Chest radiograph 3. Upper GI contrast studies 4. Gastric scintiscanning
a. 1 only
b. 1, 2, and 3 only
c. 1 and 3 only
d. 1, 3, and 4 only
ANS: D
GER disease can be diagnosed with esophageal pH testing, upper gastrointestinal contrast stud-ies, and gastric scintiscanning.
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