Bern·stein test (bûrn st n , -st n)n. A test to establish that substernal pain is due to reflux esophagitis, performed by instillation of a weak solution of hydrochloric acid directly into the lower esophagus. The symptoms disappear when the acid solution is replaced by normal saline solution. Also called acid perfusion test. |
Bernstein test [bern´stīn]
an acid perfusion test useful in differentiating esophageal pain from angina pectoris. The test requires passage of a nasogastric tube and instillation of an acid solution into the esophageal area. A lack of discomfort from the presence of the acid rules out esophagitis.
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