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USMLE Exam Prep

Category - Free USMLE Practice Test Questions

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Which of the following conditions is a high level of gastrin seen above 1000 ng/L?

Crohn’s disease
GERD
Zollinger-Ellison syndrome
Esophagitis

Explanation

Answer - C - Zollinger-Ellison syndrome is diagnosed as a result of high levels of gastrin being produced by gastrinomas (gastrin producing tumors of the duodenum or pancreas). A gastrin level of above 1000 ng/L is considered diagnostic of these tumors.

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