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Labcorp
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Quest Diagnostics
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Showing 121–144 of 1013 results
Beta-2-Glycoprotein I Antibody (IgG)
Labcorp
Not offered
Beta-2-Glycoprotein 1, apolipoprotein H, is a cofactor in antiphospholipid antibody binding and is the critical antigen in the antiphospholipid antibody syndrome. Beta-2- Glycoprotein 1 antibody is more specific than cardiolipin antibody that may express reactivity in patients with syphilis and other infectious diseases.
Beta-2-Glycoprotein I Antibody (IgM)
Labcorp
Not offered
Beta-2-Glycoprotein 1, apolipoprotein H, is a cofactor in antiphospholipid antibody binding and is the critical antigen in the antiphospholipid antibody syndrome. Beta-2- Glycoprotein 1 antibody is more specific than cardiolipin antibody that may express reactivity in patients with syphilis and other infectious diseases.
Beta-2-Microglobulin, Serum
Labcorp
Not offered
Beta-2-microglobulin normally passes through the glomerulus into the proximal tubule where much of it is reabsorbed. Serum levels are therefore an index of glomerular function. When impaired, serum levels rise in inverse ratio to glomerular filtration rate.
B-HCG, Qualitative
B-HCG, Qualitative, Serum is a blood test that detects the presence or absence of beta-human chorionic gonadotropin (ฮฒ-hCG) hormone in the serum.
- Human Chorionic Gonadotropin (hCG), Total, Qualitative A pregnancy test that simply reports whether hCG, the pregnancy hormone, is present in your blood โ a positive or negative result rather than an exact number.
B-HCG, Qualitative, Serum is a blood test that detects the presence or absence of beta-human chorionic gonadotropin (ฮฒ-hCG) hormone in the serum.
- Human Chorionic Gonadotropin (hCG), Total, Qualitative A pregnancy test that simply reports whether hCG, the pregnancy hormone, is present in your blood โ a positive or negative result rather than an exact number.
Bile Acids
Total bile acids are compounds made by the liver that help digest fats and absorb fat-soluble vitamins. Measuring bile acids can help assess liver function and detect signs of liver dysfunction.
- Bile Acids, Total Measures the total bile acids in your blood, which the liver uses to help digest fat. Elevated levels can indicate liver dysfunction or impaired bile flow.
Total bile acids are compounds made by the liver that help digest fats and absorb fat-soluble vitamins. Measuring bile acids can help assess liver function and detect signs of liver dysfunction.
- Bile Acids, Total Measures the total bile acids in your blood, which the liver uses to help digest fat. Elevated levels can indicate liver dysfunction or impaired bile flow.
Bile Acids, Fractionated and Total
Labcorp
Not offered
Bile acids are formed in the liver, from cholesterol, stored and concentrated in the gallbladder, and excreted into the intestines in response to food. Elevated concentrations often suggest impaired hepatic clearance due to liver disease. Patients with intestinal malabsorption and metabolic disorders such as Gilbert's disease do not exhibit elevated bile acids concentrations.
- Chenodeoxycholic Acid One of the primary bile acids made by your liver to help digest fat. Measured as part of detailed bile acid panels assessing liver and digestive function.
- Cholic Acid One of the primary bile acids made by your liver to help digest fat. Measured as part of detailed bile acid panels assessing liver and digestive function.
- Deoxycholic Acid A secondary bile acid formed by gut bacteria breaking down primary bile acids. Measured as part of detailed bile acid panels.
- Bile Acids, Total Measures the total bile acids in your blood, which the liver uses to help digest fat. Elevated levels can indicate liver dysfunction or impaired bile flow.
Bile Acids, Fractionated and Total, with Ursodeoxycholic Acid
Quest
Not offered
This test measures the levels of primary, secondary, and tertiary bile acids in the blood. Bile acid measurement is crucial for detecting pregnancy-related cholestasis, ensuring proper absorption of cholesterol & fat-soluble vitamins, and maintaining a healthy gut microbiome. It also reports ursodeoxycholic acid (UDCA), so it is the version to choose if you take ursodiol.
- Chenodeoxycholic Acid One of the primary bile acids made by your liver to help digest fat. Measured as part of detailed bile acid panels assessing liver and digestive function.
- Cholic Acid One of the primary bile acids made by your liver to help digest fat. Measured as part of detailed bile acid panels assessing liver and digestive function.
- Deoxycholic Acid A secondary bile acid formed by gut bacteria breaking down primary bile acids. Measured as part of detailed bile acid panels.
- Bile Acids, Total Measures the total bile acids in your blood, which the liver uses to help digest fat. Elevated levels can indicate liver dysfunction or impaired bile flow.
- Ursodeoxycholic Acid A minor bile acid, also used in medication form to treat certain liver conditions. Measured as part of detailed bile acid panels.
Bilirubin, Total and Direct
This panel measures total, direct, and indirect bilirubin. It is used to evaluate liver and biliary diseases.
- Direct Bilirubin The form of bilirubin already processed by your liver. Elevated levels point toward a liver or bile-duct problem rather than red blood cell breakdown.
- Indirect Bilirubin The form of bilirubin not yet processed by your liver, produced from the normal breakdown of red blood cells. Elevated levels can point to increased red blood cell breakdown or a liver processing problem.
- Total Bilirubin The combined level of both processed and unprocessed bilirubin in your blood, a byproduct of red blood cell breakdown. Used to evaluate liver function and jaundice.
This panel measures total, direct, and indirect bilirubin. It is used to evaluate liver and biliary diseases.
- Direct Bilirubin The form of bilirubin already processed by your liver. Elevated levels point toward a liver or bile-duct problem rather than red blood cell breakdown.
- Indirect Bilirubin The form of bilirubin not yet processed by your liver, produced from the normal breakdown of red blood cells. Elevated levels can point to increased red blood cell breakdown or a liver processing problem.
- Total Bilirubin The combined level of both processed and unprocessed bilirubin in your blood, a byproduct of red blood cell breakdown. Used to evaluate liver function and jaundice.
Biotin (Vitamin B7)
Labcorp
Not offered
Biotin, vitamin B7, or vitamin H, is a water-soluble vitamin. The vitamin plays a role in transferring carbon dioxide in the metabolism of fat, carbohydrate, and protein by functioning as an enzyme cofactor. It is involved in multiple biochemical reactions, including niacin metabolism, amino acid degradation, and the formation of purine, which is an integral part of nucleic acids. It interacts with histone through the action of biotinyl-transferase.
Birch (t3) IgE
Labcorp
Not offered
This test measures your body's IgE response to Birch by checking the level of specific IgE antibodies in the serum. It's particularly useful for individuals who may be experiencing seasonal allergies, helping to confirm the cause of symptoms. It is intended to be used in conjunction with other clinical information to aid in the diagnosis of allergic diseases
Blackberry (f211) IgE
Labcorp
Not offered
This test measures the body's immune response to blackberries by assessing the level of specific IgE antibodies in the serum. It's useful for identifying allergies to blackberries, helping to guide dietary recommendations and manage allergic reactions.
Black Olive (rf342) IgE
Labcorp
Not offered
This test checks for allergic reactions to black olives by measuring specific IgE antibodies in the blood. A high level of these antibodies suggests a strong chance of immediate allergic reactions when exposed to black olives.
Black Pepper (f280) IgE
Labcorp
Not offered
This test measures the body's immune response to black pepper by assessing the level of specific IgE antibodies in serum, helping to identify allergic reactions to those specific proteins. It's particularly useful for individuals who may be experiencing food reactivities, helping to confirm the cause of symptoms.
Blomia tropicalis (d201) IgE
Labcorp
Not offered
This test measures the IgE antibody levels in response to Blomia tropicalis, helping in the diagnosis of allergies. It's a quantitative assay that should be used alongside other clinical data for accurate allergy diagnosis.
Blood Urea Nitrogen (BUN)
BUN (Blood Urea Nitrogen) is a blood test that measures the amount of urea nitrogen, a waste product formed in the liver when protein is metabolized and excreted by the kidneys.
- Blood Urea Nitrogen Blood urea nitrogen, a waste product filtered by your kidneys. Used along with creatinine to assess kidney function and hydration status.
BUN (Blood Urea Nitrogen) is a blood test that measures the amount of urea nitrogen, a waste product formed in the liver when protein is metabolized and excreted by the kidneys.
- Blood Urea Nitrogen Blood urea nitrogen, a waste product filtered by your kidneys. Used along with creatinine to assess kidney function and hydration status.
Blueberry (f288) IgE
Labcorp
Not offered
This test measures the body's immune response to blueberries by assessing the level of specific IgE antibodies in serum, helping to identify allergic reactions to those specific proteins. It's particularly useful for individuals who may be experiencing food reactivities, helping to confirm the cause of symptoms.
Blue Mussel (f37) IgE
Labcorp
Not offered
This test measures the body's immune response to blue mussels by checking for specific IgE antibodies in the serum. It's useful for identifying allergies to blue mussels, which can cause reactions in some individuals.
Bordetella pertussis Toxin (PT) Antibody (IgG), Immunoassay
Labcorp
Not offered
Antibody levels above the reference range are highly suggestive of recent infection or vaccination.
Botrytis cinerea (m7) IgE
Labcorp
Not offered
This test checks for an allergic reaction to Botrytis cinerea, a type of fungus often found on plants. By measuring the IgE antibodies in your serum, this test can help identify if you have an allergy to this common fungus.
Brazil Nut (f18) IgE
Labcorp
Not offered
This test checks for allergic reactions to Brazil nuts by measuring the IgE antibodies in your blood. It's crucial for diagnosing nut allergies, which can range from mild to severe reactions.
Broccoli (f260) IgE
Labcorp
Not offered
This test measures the body's immune response to broccoli by assessing the level of specific IgE antibodies in the serum. It's useful for individuals who suspect they may have an allergy to broccoli, helping to confirm or rule out this food allergy.
Brome Grass (g11) IgE
Labcorp
Not offered
This test measures the body's allergic response to Brome Grass by checking the level of specific IgE antibodies in the serum. It's particularly useful for individuals who may be experiencing seasonal allergies, helping to confirm the cause of symptoms.
Brussel Sprouts (f217) IgE
Labcorp
Not offered
This test measures the body's immune response to Brussels sprouts by assessing the level of specific IgE antibodies in serum, helping to identify allergic reactions to those specific proteins. It's particularly useful for individuals who may be experiencing food reactivities, helping to confirm the cause of symptoms.
B-Type Natriuretic Peptide (BNP)
Labcorp
Not offered
This test measures the level of BNP in the blood, which can help diagnose heart conditions such as congestive heart failure, heart muscle thickening (left ventricular hypertrophy), heart attack (acute myocardial infarction), and issues after heart artery widening procedures (coronary angioplasty). High BNP levels can also indicate high blood pressure, lung blood pressure (pulmonary hypertension), lung injury, too much fluid in the body (hypervolemic states), chronic kidney failure, and liver cirrhosis. If BNP levels decrease, it may show that treatments for high blood pressure are working.