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Health Library
Entamoeba Histolytica Antibody
This test looks for antibodies to a parasite that causes the disease amebiasis. This disease is more common in tropical countries with poor sanitation.
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Calcium (Urine)
This test measures the level of calcium in your urine. If too much calcium builds up in your urine, you may be at risk for kidney stones.
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Total and Free Carnitine
This test measures the amount of a substance called carnitine in your blood. Carnitine makes it possible for your body to digest fatty acids.
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Factor XII
This test measures the amount of a protein called coagulation factor XII in your blood. Factor XII is one of several clotting factors.
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Ferritin (Blood)
This test measures how much iron is in your blood. Too much or too little iron can cause health problems.
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Fetal Fibronectin
This test measures the amount of a protein made during pregnancy. It can help your doctor know if you are at risk for premature delivery.
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Fluphenazine Drug Level (Blood)
This test measures the amount of fluphenazine in your blood. This medicine is used to treat schizophrenia and Tourette's syndrome.
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Fragile X Syndrome (Amniotic Fluid)
This test checks a sample of your amniotic fluid during pregnancy to find out if your baby may have fragile X syndrome, a rare genetic disorder.
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Immune System Disorders
When your immune system doesn't work the way it should, it is called an immune system disorder. Learn about the different types of immune system disorders.
Learn More Immune System Disorders
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