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Glossary Term

calcium infusion test     (KAL-see-um in-FYOO-zhun …)

A test used to help diagnose a type of pancreatic islet cell tumor called a gastrinoma. The patient receives a 3-hour infusion of a substance called calcium gluconate and the amount of gastrin in the blood is measured. An increase in the level of gastrin in the blood after the infusion may be a sign of a gastrinoma.