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Surgery General 25c84e36

Which of the following test differentiates between diffuse esophageal spasm and GERD

A
Barium swallow
B
Manometry
C
Ambulatory 24 hour pH monitoring
D
Biopsy
High-Yield Explanation
Symptoms and manometric findings of diffuse esophageal spasm can be caused by GERD. To differentiate between them it is mandatory to do 24 hour pH monitoring.
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