Some microbes, including bacteria, fungi, parasites and viruses, cause infections in humans. Because microbes contain genetic material (DNA and RNA) that is different from the genetic material in human cells, genetic testing techniques can be used to test for infections.
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A stool culture helps diagnose an infection of the digestive system when a person has diarrhea, abdominal pain, cramping, and blood or mucus in the stool.
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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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