Question

which of the following conditions is noted specifically for an upward flow of acid from the stomach into the esophagus?
dysphagia
esophageal varices
gastroesophageal reflux disease
eosinophilic esophagitis

Explanation:

Dysphagia is difficulty swallowing. Esophageal varices are enlarged veins in the esophagus. Eosinophilic esophagitis is inflammation of the esophagus due to eosinophils. Gastroesophageal reflux disease (GERD) is specifically the upward flow of stomach - acid into the esophagus.

Answer:

C. gastroesophageal reflux disease