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Labcorp
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Quest Diagnostics
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Showing 625–648 of 1013 results
Lobster (f80) IgE
Labcorp
Not offered
This test checks for allergic reactions to lobster by measuring the IgE antibodies in your blood. It's a specific way to find out if you're allergic to lobster, which can help in managing allergy symptoms and dietary choices.
Lobster, Spiny (f304) IgE
Labcorp
Not offered
This test is designed to identify allergies to spiny lobster by measuring the IgE antibodies in your blood. It's a crucial step for those who suspect they might have an allergic reaction to this type of seafood.
Lp-PLA2 Activity
Labcorp
Not offered
This test measures the activity of Lipoprotein-associated phospholipase A2 (Lp-PLA2), an enzyme linked to inflammation and found in atherosclerotic plaques. High levels of Lp-PLA2 are associated with an increased risk of coronary heart disease and stroke. This test can help identify individuals at higher risk of cardiovascular events, aiding in the decision to start or intensify risk reduction strategies.
- Lipoprotein-Associated Phospholipase A2 (Lp-PLA2) Measures an enzyme linked to inflammation within artery walls, used as an additional marker to help assess cardiovascular risk.
Lupine Seed (f335) IgE
Labcorp
Not offered
This test measures the body's allergic response to lupine seeds by checking for specific IgE antibodies in the serum. It's crucial for individuals who may experience allergic reactions to lupine seeds, a common ingredient in various foods.
Luteinizing Hormone (LH)
This test measures the level of luteinizing hormone (LH) in serum. It is used to evaluate the normalcy of the hypothalamic-pituitary-gonadal axis and to diagnose and treat infertility in women.
- Luteinizing Hormone (LH) A pituitary hormone that triggers ovulation in women and stimulates testosterone production in men. Used to evaluate fertility, menstrual irregularities, and reproductive hormone disorders.
This test measures the level of luteinizing hormone (LH) in serum. It is used to evaluate the normalcy of the hypothalamic-pituitary-gonadal axis and to diagnose and treat infertility in women.
- Luteinizing Hormone (LH) A pituitary hormone that triggers ovulation in women and stimulates testosterone production in men. Used to evaluate fertility, menstrual irregularities, and reproductive hormone disorders.
Lyme Disease Antibodies (IgG, IgM), Immunoblot
Labcorp
Not offered
This test checks for Lyme disease, which is spread by ticks carrying Borrelia burgdorferi. It uses a method called Immunoblot to look for specific antibodies in your blood with high accuracy. This is usually done to confirm results from other tests like EIA or IFA.
- 18 KD (IgG) Band
- 23 KD (IgG) Band
- 23 KD (IgM) Band
- 28 KD (IgG) Band
- 30 KD (IgG) Band
- 39 KD (IgG) Band
- 39 KD (IgM) Band
- 41 KD (IgG) Band
- 41 KD (IgM) Band
- 45 KD (IgG) Band
- 58 KD (IgG) Band
- 66 KD (IgG) Band
- 93 KD (IgG) Band
- Lyme Disease Antibodies (IgG), Immunoblot
- Lyme Disease Antibodies (IgM), Immunoblot
Lyme Disease, Line Blot
Quest
Not offered
This test is used to detect antibodies antibodies to the bacterium Borrelia burgdorferi. This test is intended as the second step in testing serum samples found to have been equivocal or positive using an ELISA or IFA test.
Lymphocyte Subset Panel 2
Labcorp
Not offered
T-lymphocyte count assists in evaluating cellular immunocompetency.
- CD4/CD8 Ratio Compares two types of immune T-cells. Used to assess immune system balance, especially in HIV monitoring and some autoimmune or infectious conditions.
- Absolute CD19+ Cells
- Absolute CD3+ Cells
- Absolute CD4+ Cells Counts CD4 'helper' T-cells, a key part of your immune system. Widely used to monitor immune health in HIV and other immune conditions.
- Absolute CD8+ Cells Counts CD8 'cytotoxic' T-cells, immune cells that help destroy infected or abnormal cells. Used to assess immune status.
- CD19 (B Cells) (%)
- Mature T Cells (CD3) (%)
- CD4 (%) The percentage of your lymphocytes that are CD4 helper T-cells, used alongside the absolute CD4 count to assess immune function.
- CD8 (%) The percentage of your lymphocytes that are CD8 cytotoxic T-cells, used alongside the absolute count to assess immune function.
- Lymphocytes The number of lymphocytes, white blood cells central to your immune response (including T-cells, B-cells, and NK cells), in your blood.
Lynch Syndrome Panel
Labcorp
Not offered
Lynch syndrome is a leading cause of inherited colon cancer, affecting 2% to 4% of all cases of colorectal and endometrial cancer. This test looks for specific genetic changes (pathogenic variants) in the MLH1, MSH2, MSH6, PMS2, and EPCAM genes that can indicate Lynch syndrome.
Lysozyme (rk208) IgE
Labcorp
Not offered
This test measures the IgE antibody levels against lysozyme (rk208) in the serum. It's particularly useful for identifying allergic reactions that might be triggered by specific substances. By assessing the presence of IgE antibodies, healthcare providers can better understand an individual's allergic responses and tailor management strategies accordingly.
Macadamia Nut (rf345) IgE
Labcorp
Not offered
This test checks for allergies to macadamia nuts by measuring the immune system's response. If you're experiencing symptoms after eating macadamia nuts, this test can help determine if you're allergic.
Mackerel (f206) IgE
Labcorp
Not offered
This test measures the body's immune response to mackerel, a type of fish, by checking for specific IgE antibodies in the serum. It's useful for identifying allergies to mackerel, helping to guide dietary recommendations and manage allergic reactions.
Macroprolactin
Quest
Not offered
This test is used to determine biologically active levels of prolactin in asymptomatic patients with elevated prolactin levels.
- Monomeric Prolactin The active, single-molecule form of prolactin, distinguished from macroprolactin (a larger, less active form) to clarify the true cause of an elevated prolactin result.
- Prolactin A pituitary hormone best known for stimulating milk production; also checked to evaluate menstrual irregularities, fertility issues, or pituitary conditions in men and women.
- Macroprolactin/Prolactin The percentage of your prolactin that's in a large, less biologically active form. Helps determine whether an elevated prolactin result is clinically significant.
Magnesium
Magnesium is essential for muscle function, nerve signaling, and energy production. This test measures the magnesium level in serum, and is used to help diagnose and monitor conditions related to magnesium deficiency or excess.
- Magnesium Measures magnesium, a mineral essential for muscle, nerve, heart, and bone function.
Magnesium is essential for muscle function, nerve signaling, and energy production. This test measures the magnesium level in serum, and is used to help diagnose and monitor conditions related to magnesium deficiency or excess.
- Magnesium Measures magnesium, a mineral essential for muscle, nerve, heart, and bone function.
Magnesium, Red Blood Cell (RBC)
Magnesium, RBC (Red Blood Cell) measures the magnesium level inside red blood cells, providing a more accurate reflection of intracellular magnesium status than serum levels. Magnesium is essential for muscle function, nerve signaling, and energy production.
- Magnesium RBC Measures magnesium stored inside red blood cells, considered a more accurate reflection of your body's magnesium status than a standard serum test.
Magnesium, RBC (Red Blood Cell) measures the magnesium level inside red blood cells, providing a more accurate reflection of intracellular magnesium status than serum levels. Magnesium is essential for muscle function, nerve signaling, and energy production.
- Magnesium RBC Measures magnesium stored inside red blood cells, considered a more accurate reflection of your body's magnesium status than a standard serum test.
Maize/Corn (f8) IgE
Labcorp
Not offered
This test measures the body's immune response to corn by detecting IgE antibodies in the serum. It's useful for identifying potential corn allergies, helping to guide dietary choices and management strategies.
Malaria/Babesia/Other Blood Parasites
Labcorp
Not offered
The identification of malarial parasites and other blood parasites is used to determine treatment and prognosis. Babesia and other blood parasite are noted and reported. Microfilaria can be detected from a giemsa stain. However, this test is not recommended for the detection of microfilaria. One negative observation cannot rule out blood parasites.
Malt (f90) IgE
Labcorp
Not offered
This test measures the body's immune response to malt through the level of specific IgE antibodies in the serum. It's particularly useful for individuals who suspect they might have an allergy to malt, which is commonly found in foods and beverages like beer and cereals.
Mandarin (Tangerine) (f302) IgE
Labcorp
Not offered
This test is designed to identify allergies to mandarins or tangerines by measuring the IgE antibodies in your blood. It's a crucial step for anyone who suspects they might have a food allergy to these fruits, helping to confirm the allergy and guide dietary adjustments.
Manganese
This test measures the level of manganese in the blood. It is typically used to assess manganese exposure or toxicity, evaluate nutritional deficiencies, and monitor individuals with occupational exposure to manganese. Abnormal levels can indicate potential issues such as manganese toxicity, which affects the nervous system, or deficiency, which can impact bone development and metabolic processes.
- Manganese Measures manganese, a trace mineral involved in bone formation, metabolism, and antioxidant defense — important in both deficiency and, rarely, toxicity.
This test measures the level of manganese in the blood. It is typically used to assess manganese exposure or toxicity, evaluate nutritional deficiencies, and monitor individuals with occupational exposure to manganese. Abnormal levels can indicate potential issues such as manganese toxicity, which affects the nervous system, or deficiency, which can impact bone development and metabolic processes.
- Manganese Measures manganese, a trace mineral involved in bone formation, metabolism, and antioxidant defense — important in both deficiency and, rarely, toxicity.
Mango Fruit (f91) IgE
Labcorp
Not offered
This test measures the body's immune response to mango 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.
Maple (Box Elder) (t1) IgE
Labcorp
Not offered
This test measures the body's immune response to Maple (Box Elder) allergens by evaluating the presence of specific IgE antibodies in the serum. It's crucial for diagnosing allergies related to the Maple (Box Elder) tree, helping to identify the cause of allergic reactions such as sneezing, itching, or respiratory issues.
- Maple (Box Elder) (t1) IgE Measures IgE antibodies to box elder tree pollen, a common early-spring allergy trigger.
Matrix Metalloproteinase-9 (MMP-9)
Quest
Not offered
MMP-9 (Matrix Metalloproteinase-9) is an enzyme involved in the breakdown of extracellular matrix components during tissue remodeling and inflammation. Elevated levels are associated with chronic inflammation, cardiovascular disease, and certain autoimmune disorders.
- Matrix Metalloproteinase-9 (MMP-9) An enzyme involved in breaking down tissue, including artery plaque, and contributing to inflammation. Studied in cardiovascular and certain chronic inflammatory conditions.
Meadow Fescue (g4) IgE
Labcorp
Not offered
This test measures the body's immune response to Meadow Fescue, a common grass, by assessing the level of specific IgE antibodies in the serum. It's particularly useful for individuals who may be experiencing allergic reactions to certain grasses.