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Digestive Disorders
Detailed information on the most common types of digestive disorders, including appendicitis, Barrett's esophagus, celiac disease, constipation, crohn's disease, diarrhea, diverticular disease, gas, gastritis, gastroesophageal reflux disease (GERD), gastr
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Angina Pectoris
Angina pectoris is chest pain or a feeling of chest discomfort that occurs when a part of your heart doesn't get enough blood and oxygen. Learn more about angina, including causes, risks, symptoms, diagnosis, treatment, and prevention.
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Cryoglobulin
This test is done to find out if you have abnormal proteins in your blood. They can be a sign of rheumatoid arthritis, lupus, or Raynaud's syndrome, among other illnesses.
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Factor X
This test checks for a deficiency in a protein in the blood known as Factor X. This protein helps with clotting.
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Porphyrins (Urine)
This test looks for substances called porphyrins in your urine. If high levels are present, you may have a disease that affects the way the hemoglobin in your blood works.
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Factor XI
This test measures the amount of factor XI in your blood. Factor XI is a substance that plays an important role in blood clotting.
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Gastrin
This test measures the amount of the hormone gastrin in your blood. You may need this test if you have recurrent peptic ulcers.
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HSV DNA (CSF)
This test finds out if you have DNA from the herpes simplex virus in your nervous system. It can help diagnose encephalitis and meningitis.
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Factor VIII (Antihemophilic Factor A)
This test helps find out if you have hemophilia A or another clotting disorder.
Learn More Factor VIII (Antihemophilic Factor A)
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