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Labcorp
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Quest Diagnostics
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Showing 193–216 of 1013 results
CD4:CD8 Ratio Profile
Quest
Not offered
The CD4:CD8 Ratio Profile measures the percentage and absolute counts of CD4+ and CD8+ cells, along with their ratio. This test is valuable for assessing and monitoring immune system function, as changes in these cell counts and ratios can indicate alterations in immune status.
- Basophils (%) The percentage of your white blood cells that are basophils, a cell type involved in allergic and inflammatory responses.
- 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.
- Eosinophils (%) The percentage of your white blood cells that are eosinophils, elevated with allergies, asthma, or parasitic infections.
- Hematocrit The percentage of your blood volume made up of red blood cells. Used to help diagnose anemia or polycythemia (excess red blood cells).
- Hemoglobin The oxygen-carrying protein in your red blood cells. A core marker for diagnosing anemia and other blood disorders.
- Immature Granulocytes (%) The percentage of young, not-yet-mature white blood cells in circulation — a rise can be an early sign of infection or bone marrow stress.
- Lymphocytes (%) The percentage of your white blood cells that are lymphocytes, key immune cells including T-cells, B-cells, and NK cells.
- Monocytes (%) The percentage of your white blood cells that are monocytes, cells that help fight infection and clear damaged tissue.
- Neutrophils (%) The percentage of your white blood cells that are neutrophils, a first-line defense against infection.
- 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.
- Basophils The number of basophils, a type of white blood cell involved in allergic and inflammatory responses, in your blood.
- 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.
- Eosinophils The number of eosinophils, a white blood cell type involved in allergic reactions and parasite defense, in your blood.
- Immature Granulocytes The number of young, not-yet-mature white blood cells in circulation — a rise can be an early sign of infection or bone marrow stress.
- Lymphocytes The number of lymphocytes, white blood cells central to your immune response (including T-cells, B-cells, and NK cells), in your blood.
- Mean Corpuscular Hemoglobin Concentration (MCHC) Mean Corpuscular Hemoglobin Concentration — the average concentration of hemoglobin within your red blood cells, used to help classify types of anemia.
- Mean Corpuscular Hemoglobin (MCH) Mean Corpuscular Hemoglobin — the average amount of hemoglobin per red blood cell, used to help classify types of anemia.
- Mean Corpuscular Volume Mean Corpuscular Volume — the average size of your red blood cells, a key value used to help determine the cause of anemia.
- Monocytes The number of monocytes, white blood cells that help fight infection and clear damaged cells, in your blood.
- Neutrophils The number of neutrophils, the most abundant white blood cell type and a first-line defense against infection, in your blood.
- Platelet Count Cell fragments that help your blood clot. Counted to screen for bleeding or clotting risk and various blood disorders.
- Red Blood Cell Count (RBC) Red blood cell count — the number of oxygen-carrying red blood cells in your blood, used to help diagnose anemia or polycythemia.
- Red Cell Distribution Width (RDW) Red Cell Distribution Width — measures how much your red blood cells vary in size, helpful for narrowing down the cause of anemia.
- White Blood Cell Count (WBC) White blood cell count — the total number of white blood cells in your blood, key immune cells. Used to help detect infection, inflammation, and other blood disorders.
C.Difficile Toxin A&B
Quest
Not offered
C. difficile Toxin A & B test detects toxins produced by the Clostridioides difficile (C. difficile) bacteria in stool samples. These toxins can cause inflammation of the colon, leading to symptoms such as diarrhea, abdominal pain, and colitis, especially after antibiotic use. The test helps diagnose C. difficile infection.
Celery (f85) IgE
Labcorp
Not offered
This test is designed to identify allergic reactions to celery by measuring the presence of specific IgE antibodies in the serum. It's useful for individuals who suspect adverse reactions especially after consuming celery or celery-based products.
Celiac Disease Diagnostic Panel
Labcorp
Not offered
Celiac disease is characterized by the presence of Transglutaminase, Gliadin, and Reticulin Antibodies. Such patients display a hypersensitivity to gluten (wheat) in their diet. The antibody is undetectable when patients with hypersensitivity are placed on gluten-free diets. Antibody IgA is more specific and IgG is more sensitive to Celiac disease.
- Tissue Transglutaminase IgA The primary antibody test used to screen for celiac disease.
- Immunoglobulin A (IgA) One of your main antibody classes, concentrated in mucous membranes (gut, respiratory tract). Low levels are linked to recurrent infections; also checked before certain other antibody tests, like celiac panels.
- Gliadin (Deamidated) Antibody (IgA)
- Gliadin (Deamidated) Antibody (IgG)
- Tissue Transglutaminase (tTG) Antibody (IgG) An antibody used to screen for celiac disease, particularly useful in people with IgA deficiency.
Celiac Disease Evaluation
Quest
Not offered
This test provides a comprehensive evaluation of the antibodies that are characteristic of celiac disease. Celiac disease is also associated with selective IgA deficiency and autoimmune disorders.
- Deamidated Gliadin Peptide IgA An antibody used to help screen for celiac disease, particularly useful in young children or when tissue transglutaminase results are unclear.
- Deamidated Gliadin Peptide IgG An antibody used to help screen for celiac disease, especially useful in people with IgA deficiency.
- Tissue Transglutaminase IgA The primary antibody test used to screen for celiac disease.
- Tissue Transglutaminase (tTG) Antibody (IgG) An antibody used to screen for celiac disease, particularly useful in people with IgA deficiency.
Celiac HLA DQ Association
Quest
Not offered
The Celiac HLA DQ Association test detects HLA-DQ2 and HLA-DQ8 to aid in diagnosing celiac disease.
Centromere Antibodies
Centromere Antibodies (Centromere Abs) are autoantibodies that target proteins in the centromere region of chromosomes. They are most commonly associated with limited cutaneous systemic sclerosis (formerly CREST syndrome), a form of scleroderma. Testing for these antibodies helps in diagnosing autoimmune connective tissue diseases and assessing disease type and prognosis.
- Centromere B Antibody Autoantibodies that target a structure inside your cells called the centromere. Strongly associated with limited scleroderma (CREST syndrome).
Centromere Antibodies (Centromere Abs) are autoantibodies that target proteins in the centromere region of chromosomes. They are most commonly associated with limited cutaneous systemic sclerosis (formerly CREST syndrome), a form of scleroderma. Testing for these antibodies helps in diagnosing autoimmune connective tissue diseases and assessing disease type and prognosis.
- Centromere B Antibody Autoantibodies that target a structure inside your cells called the centromere. Strongly associated with limited scleroderma (CREST syndrome).
Ceruloplasmin
Ceruloplasmin is a copper-carrying protein made in the liver. It plays a role in iron metabolism and antioxidant defense. This test is commonly used to help diagnose Wilson’s disease, a rare genetic disorder where copper builds up in the body, and may also be used to assess copper levels in liver disease, malnutrition, or certain inflammatory conditions.
- Ceruloplasmin The main protein that carries copper in your blood. Low levels can point to Wilson's disease, a genetic disorder of copper metabolism.
Ceruloplasmin is a copper-carrying protein made in the liver. It plays a role in iron metabolism and antioxidant defense. This test is commonly used to help diagnose Wilson’s disease, a rare genetic disorder where copper builds up in the body, and may also be used to assess copper levels in liver disease, malnutrition, or certain inflammatory conditions.
- Ceruloplasmin The main protein that carries copper in your blood. Low levels can point to Wilson's disease, a genetic disorder of copper metabolism.
Chaetomium globosum (m208) IgE
Labcorp
Not offered
This test is designed to identify allergies by detecting the presence of IgE antibodies in response to Chaetomium globosum, a type of fungus. Identifying specific IgE antibodies helps in diagnosing allergic reactions to this fungus.
Cheddar Cheese (f81) IgE
Labcorp
Not offered
This test measures the body's immune response to cheddar cheese, indicating a potential allergy. By analyzing a small serum sample, it helps identify if cheddar cheese could be causing allergic reactions.
Cheese Mold Type (f82) IgE
Labcorp
Not offered
This test is designed to identify allergic reactions to specific types of mold found in cheese by measuring the IgE antibodies in your serum. Knowing if you're allergic to these molds can help manage and prevent allergic reactions.
Cherry (f242) IgE
Labcorp
Not offered
This test measures the body's immune response to cherries, indicating a potential cherry allergy. By analyzing a small serum sample, it helps identify if your immune system reacts to cherries, which could explain allergic symptoms.
Chestnut (Sweet) (f299) IgE
Labcorp
Not offered
This test measures the body's immune response to sweet chestnut, helping to identify potential allergies. By analyzing a small serum sample, healthcare providers can determine if an individual has an allergic sensitivity to sweet chestnuts, which is crucial for managing dietary restrictions and avoiding allergic reactions.
Chestnut (t206) IgE
Labcorp
Not offered
This test is designed to identify allergic reactions to chestnuts by measuring the IgE antibodies in your blood. It's a crucial step for those who suspect they might have a chestnut allergy, helping to confirm the diagnosis and guide dietary and lifestyle adjustments.
Chicken Feathers (e85) IgE
Labcorp
Not offered
This test measures the body's immune response to chicken feathers by checking the level of specific IgE antibodies in the serum. It's useful for identifying allergies to chicken feathers.
Chicken Meat (f83) IgE
Labcorp
Not offered
This test checks for allergic reactions to chicken meat by measuring the IgE antibodies in your serum. It's crucial for diagnosing food allergies and can help you understand if chicken meat is causing your allergy symptoms.
Chick Pea (f309) IgE
Labcorp
Not offered
This test measures the body's allergic response to chick pea by detecting specific IgE antibodies in the serum. It's crucial for diagnosing allergies and helps in managing allergic reactions effectively.
Chlamydia/Gonorrhea, Urine
Quest
Not offered
Chlamydia/Gonorrhea, Urine is a diagnostic test that detects the presence of Chlamydia trachomatis and Neisseria gonorrhoeae, two common sexually transmitted infections (STIs), using a urine sample. The test typically uses nucleic acid amplification testing (NAAT) for high sensitivity and accuracy. It is non-invasive and widely used for screening, especially in individuals who are sexually active or at increased risk of STIs.
Chlamydia/Neisseria gonorrhoeae RNA, TMA, Urogenital
Labcorp
Not offered
C. trachomatis infections are the leading cause of sexually transmitted diseases in the United States. C. trachomatis is known to cause cervicitis, pelvic inflammatory disease (PID), epididymitis, and proctitis. It is also the most frequent cause of non-gonococcal urethritis in men. Among women, the consequences of Chlamydial infections are severe if left untreated. Approximately half of Chlamydial infections are asymptomatic. Neisseria gonorrhoeae (gonococci) is the causative agent of gonorrhea. In men, this disease generally results in anterior urethritis accompanied by purulent exudate. In women, the disease is most often found in the cervix, but the vagina and uterus may also be infected.
Chlamydia pneumoniae IgG
Quest
Not offered
This test detects IgG antibodies specific to Chlamydophila pneumoniae, a bacterium that causes respiratory infections such as bronchitis, pneumonia, and sinusitis. The presence of IgG antibodies typically indicates past exposure or a chronic infection.
- Chlamydia pneumoniae IgG An antibody that indicates past or ongoing exposure to Chlamydia pneumoniae, a bacterium that can cause respiratory infections.
Chlamydia, Urine
Chlamydia, Urine is a non-invasive test used to detect a Chlamydia trachomatis infection, a common sexually transmitted infection (STI). It involves analyzing a urine sample—typically the first-catch urine—for the presence of bacterial DNA using nucleic acid amplification testing (NAAT). It is commonly used for screening and diagnosis in both men and women.
Chlamydia, Urine is a non-invasive test used to detect a Chlamydia trachomatis infection, a common sexually transmitted infection (STI). It involves analyzing a urine sample—typically the first-catch urine—for the presence of bacterial DNA using nucleic acid amplification testing (NAAT). It is commonly used for screening and diagnosis in both men and women.
Chlamydophila pneumoniae Antibodies (IgG, IgA, IgM)
Labcorp
Not offered
Chlamydophila pneumoniae is a common cause of infantile and community-acquired pneumonia.
- Chlamydia pneumoniae IgG An antibody that indicates past or ongoing exposure to Chlamydia pneumoniae, a bacterium that can cause respiratory infections.
- Chlamydophila pneumoniae Antibody (IgA)
- Chlamydophila pneumoniae Antibody (IgM)
Chlamydophila pneumoniae Antibody (IgM)
Labcorp
Not offered
Chlamydophila pneumoniae is a common cause of infantile and community-acquired pneumonia.
Chloride
Chloride is an electrolyte that helps maintain the body’s fluid balance, acid-base balance, and electrical neutrality in cells. It is usually measured as part of a basic or comprehensive metabolic panel. Abnormal chloride levels can indicate issues such as dehydration, kidney disease, or acid-base disorders (like metabolic acidosis or alkalosis).
- Chloride An electrolyte that works with sodium and potassium to maintain fluid balance and acid-base status in your body.
Chloride is an electrolyte that helps maintain the body’s fluid balance, acid-base balance, and electrical neutrality in cells. It is usually measured as part of a basic or comprehensive metabolic panel. Abnormal chloride levels can indicate issues such as dehydration, kidney disease, or acid-base disorders (like metabolic acidosis or alkalosis).
- Chloride An electrolyte that works with sodium and potassium to maintain fluid balance and acid-base status in your body.