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Labcorp
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Quest Diagnostics
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Showing 217–240 of 1013 results
Chloride, 24-Hour Urine with Creatinine
Labcorp
Not offered
Urine chloride excretion approximates the dietary intake. The chloride content of most foods parallels that of sodium. An increase in urine chloride may result from water-deficient dehydration, diabetic acidosis, Addison's Disease, and salt-losing renal disease. Decreased urine levels are seen in congestive heart failure, severe diaphoresis, and in hypochloremic metabolic alkalosis due to prolonged vomiting.
Chromatin Antibodies
Quest
Not offered
Anti-chromatin antibodies are autoantibodies directed against the chromatin complex (a combination of DNA, RNA, and proteins within the cell nucleus). More than 50% of patients with SLE (systemic lupus erythematosus) exhibit reactivity with chromatin.
Chromatin (Nucleosomal) Antibody
Labcorp
Not offered
This test is crucial for understanding the autoimmune response in systemic lupus erythematosus (SLE), a condition where the body's immune system mistakenly attacks its own tissues. About 90% of people with SLE show positive results for this test, indicating their immune system is reacting to nucleosomes, which are components of the cell's nucleus.
Chromium, Blood
Labcorp
Not offered
This test is important for checking chromium levels in the body. It can help track exposure to chromium, see how well treatment is working, or understand nutritional status.
Chub Mackerel (f50) IgE
Labcorp
Not offered
This test measures the body's immune response to Chub Mackerel, a type of fish, 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.
Cinnamon (f220) IgE
Labcorp
Not offered
This test measures the body's allergic response to cinnamon by checking for specific IgE antibodies in the serum. It's useful for individuals who suspect they might have a cinnamon allergy, showing reactions after consuming or coming into contact with cinnamon.
CIRS Panel
Quest
Not offered
The CIRS panel measures markers associated with Chronic Inflammatory Response Syndrome (CIRS). It aids in evaluating systemic inflammation and immune dysregulation, facilitating accurate diagnosis and tailored treatment plans for patients with CIRS-related conditions.
- Antidiuretic Hormone Also called vasopressin, this hormone helps your kidneys regulate how much water your body retains. Abnormal levels are linked to conditions affecting fluid balance, like diabetes insipidus or SIADH.
- Complement C4a An activation fragment produced when complement protein C4 is triggered. Reflects how active your complement immune pathway currently is.
- Leptin A hormone released by fat cells that helps regulate appetite and energy balance. Levels generally rise with increased body fat.
- 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.
- Melanocyte-Stimulating Hormone (MSH) A pituitary-derived hormone involved in skin pigmentation and, more recently, studied for roles in appetite and inflammation regulation.
- Osmolality Measures the concentration of dissolved particles in your blood, reflecting hydration and fluid balance.
- Vascular Endothelial Growth Factor (VEGF) A signaling protein that promotes new blood vessel growth. Studied in cancer, wound healing, and certain inflammatory or eye conditions.
- Complement C3a desArg An activation fragment produced when complement protein C3 is triggered. Reflects how active your complement immune pathway currently is.
- Transforming Growth Factor Beta 1 (TGF-ฮฒ1) A signaling protein (cytokine) involved in tissue repair, immune regulation, and inflammation; studied in various chronic inflammatory and fibrotic conditions.
Cladosporium herbarum (m2) IgE
Labcorp
Not offered
This test measures the IgE antibody levels in response to Cladosporium herbarum, helping in the diagnosis of allergies related to this specific mold. It's a quantitative assay that should be used alongside other clinical evaluations to accurately diagnose allergic diseases.
Clam (f207) IgE
Labcorp
Not offered
This test measures the body's immune response to clams by checking for specific IgE antibodies in the serum. It's useful for identifying allergies to clams, helping to guide dietary recommendations and manage allergic reactions.
Clove (f268) IgE
Labcorp
Not offered
This test is designed to identify allergic reactions to cloves by measuring the IgE antibodies in your blood. It's a crucial step for individuals who suspect they might have an allergy to cloves, helping to confirm the diagnosis and guide dietary and lifestyle adjustments.
Clozapine
Labcorp
Not offered
Clozapine is an atypical antipsychotic agent. Norclozapine has minimal therapeutic activity.
- Clozapine Measures blood levels of the antipsychotic medication clozapine, used to guide safe and effective dosing.
- Norclozapine Measures blood levels of norclozapine, the active metabolite of the antipsychotic medication clozapine, used to help guide dosing.
Clozapine with Norclozapine
Quest
Not offered
Clozapine is an antipsychotic medication used primarily to treat schizophrenia in patients who have not responded to other treatments. A Clozapine blood level test measures the amount of the drug in the blood to ensure it is within a therapeutic range and to avoid toxicity. Monitoring is crucial because clozapine can cause serious side effects, including agranulocytosis (a dangerous drop in white blood cells), requiring regular blood count checks.
- Clozapine Measures blood levels of the antipsychotic medication clozapine, used to guide safe and effective dosing.
- Clozapine + Norclozapine Measures blood levels of clozapine along with its active metabolite, norclozapine, together used to guide dosing of this antipsychotic medication.
- Norclozapine Measures blood levels of norclozapine, the active metabolite of the antipsychotic medication clozapine, used to help guide dosing.
Cobalt, Blood
Labcorp
Not offered
Cobalt is a mineral that's part of our diet. It's mostly removed from our body through urine, with a small amount leaving through stool. While cobalt is necessary, too much can be harmful, especially in certain work environments. Since cobalt isn't mined in the U.S., it's usually brought in from other countries.
Coccidioides Monitor Panel, Serum
Labcorp
Not offered
This test detects antibodies to Coccidioides species. Positive results suggest coccidioides infection.
Cochineal Extract (Dactylopius coccus) (f340) IgE
Labcorp
Not offered
This test measures the body's allergic reaction to cochineal extract, a natural red dye made from the Dactylopius coccus insect. People might be exposed to this allergen through certain foods, drinks, or at work. The test checks for specific IgE antibodies that indicate an allergic response to cochineal extract. It's a helpful tool for providers to diagnose allergies, used alongside other clinical information.
Cocklebur (w13) IgE
Labcorp
Not offered
This test measures the body's immune response to Cocklebur 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.
Cockroach (i6) IgE
Labcorp
Not offered
This test measures your body's allergic reaction to the German cockroach, a common insect in cities with mild climates. Being around cockroach allergens can lead to asthma, especially in kids and young adults. This test, which checks the level of IgE antibodies in response to cockroaches, helps providers diagnose allergies. It's done in a lab and should be used alongside other health info for the best results.
Cocoa (f93) IgE
Labcorp
Not offered
This test is designed to identify allergies to cocoa by measuring the immune system's response. It's crucial for individuals who experience adverse reactions to cocoa or chocolate products. Understanding your IgE levels can help manage or avoid allergic reactions.
Coconut (f36) IgE
Labcorp
Not offered
This test checks for allergic reactions to coconut by measuring the IgE antibodies in your blood. It's crucial for individuals who suspect they might have a coconut allergy, which can lead to symptoms like itching, swelling, and other severe reactions.
Codfish (f3) IgE
Labcorp
Not offered
This test measures the level of IgE antibodies in response to codfish protein in your blood. It's used to help diagnose allergies to codfish, which can lead to symptoms like itching, swelling, and difficulty breathing after consuming codfish or codfish-containing products.
Coenzyme Q10 (CoQ10)
Coenzyme Q10 (CoQ10) is a vitamin-like substance found in every cell of the body, playing a key role in energy production and acting as a powerful antioxidant. A blood test for CoQ10 measures its levels to evaluate for deficiencies, which may be associated with certain conditions like mitochondrial disorders, heart disease, or the use of statin medications. It may also be monitored in patients taking CoQ10 supplements.
- Coenzyme Q10 (CoQ10) An antioxidant compound your cells use to produce energy. Tested to assess CoQ10 status, especially in people on statin medications, which can lower natural levels.
Coenzyme Q10 (CoQ10) is a vitamin-like substance found in every cell of the body, playing a key role in energy production and acting as a powerful antioxidant. A blood test for CoQ10 measures its levels to evaluate for deficiencies, which may be associated with certain conditions like mitochondrial disorders, heart disease, or the use of statin medications. It may also be monitored in patients taking CoQ10 supplements.
- Coenzyme Q10 (CoQ10) An antioxidant compound your cells use to produce energy. Tested to assess CoQ10 status, especially in people on statin medications, which can lower natural levels.
Coffee (f221) IgE
Labcorp
Not offered
This test checks for an allergic reaction to coffee by measuring the IgE antibodies in your blood. It's important for people who experience symptoms after drinking coffee and suspect they might be allergic.
Collagen Cross-Linked N-Telopeptide (NTx), Urine
Labcorp
Not offered
NTx is useful to assess bone resorption in patients with metabolic bone disease. The test is also useful in monitoring therapy to slow or halt osteoporotic bone loss. A decline of 30% or more of NTx over a six-month period suggests effective therapy.