Lab Test Glossary F

Fatty acid binding protein (fabp): Fatty acid binding protein (FABP) is a newly introduced biomarker of acute myocardial infarction (AMI). It may be significantly elevated in an acute heart attack. FABP appears to be a useful biomarker for estimating the amount of cardiac muscle affected by an AMI.
Ferritin: Ferritin is a protein that stores iron in the blood. The ferritin level is a sensitive indicator of the body’s iron stores. Serum ferritin levels are very helpful in the evaluation of blood disorders such as iron deficiency anemia, anemia of chronic infection, thalassemia, and hemochromatosis.
Fibrinogen: Fibrinogen is a protein that is transformed into fibrin, an important protein to the blood clotting process. Low levels of this protein are seen with excessive fibrinogen use, such as disseminated intravascular coagulation, primary fibrinolysis, and liver disease. High levels are a risk factor for excessive blood clotting and are a strong predictor of cardiovascular risk and stroke.
Fibroblast Growth Factor-basic form (fgf-basic): Fibroblast growth factor-basic form (FGF-basic) is a protein produced by many cells. It is a powerful stimulant of new cell growth and may be involved in the development of plaques in blood vessels related to coronary heart disease.
Folic Acid: Folic acid (also called folate) is a B vitamin involved in many metabolic reactions in the body, including new cell growth. Low levels of folic acid may be related to anemia, nutritional disorders, and metabolic disorders and may increase the risk of high blood pressure in women. Maternal folic acid intake has been shown to reduce the risk of fetal neural tube defects. Low folate intake, malabsorption, pregnancy, chronic alcoholism, and some drugs can cause folate deficiency.
Follicle Stimulating Hormone (fsh): Follicle stimulating hormone (FSH) is a sex hormone produced in the pituitary gland. In women, FSH stimulates the growth of ovarian follicles and the production of estradiol (estrogen) during the first half of the menstrual cycle. Increased levels are associated with menopause or a decrease in ovarian function. In males, FSH is partially responsible for making sperm. Increased levels are associated with hypogonadism.
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