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Gastrin is a hormone that regulates the production of acid in the stomach during the digestive process. The gastrin test helps diagnose tumors called gastrinomas, Zollinger-Ellison (ZE) syndrome, and hyperplasia of G-cells.
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A blood calcium test is ordered to screen for, diagnose, and monitor a range of conditions relating to the bones, heart, nerves, kidneys, and teeth.
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