Biomarkers: explore one system at a time

Showing 1021–1040 of 1204 results

• Sardine/pilchard (f61) IgE Measures IgE antibodies to sardine (pilchard), a fish food allergen, to check whether your immune system is sensitized to it.
• SARS-CoV-2 Antibodies Indicates past exposure to or vaccination against SARS-CoV-2, the virus that causes COVID-19.
• SARS-CoV-2 Antibody (IgG) An antibody indicating past infection with or vaccination against SARS-CoV-2 (COVID-19).
• SARS-CoV-2 Spike Antibody, Interpretation The interpretation of a test for antibodies to the SARS-CoV-2 spike protein, showing whether you have antibodies from past COVID-19 infection or vaccination.
• Saturated, Total The combined level of saturated fatty acids in your blood, calculated from the individual saturated fatty acids measured on the panel.
• Scale (w15) IgE Measures IgE antibodies to scale (lenscale) pollen, a saltbush-family weed of dry western regions, to check whether you are sensitized to it.
• Scallop (f338) IgE Measures IgE antibodies to scallop, a shellfish food allergen, to check whether your immune system is sensitized to it.
• Scleroderma (Scl-70) Antibody An autoantibody strongly associated with diffuse systemic sclerosis (scleroderma), a more widespread form of the disease.
• Selenium Measures selenium, a trace mineral important for thyroid function and antioxidant defense.
• Selenium, RBC Measures selenium inside your red blood cells, reflecting your longer-term selenium status over recent months rather than just recent intake.
• Serotonin Measures serotonin, a neurotransmitter and hormone; blood levels are used mainly to help evaluate carcinoid tumors rather than mood.
• Sesame Seed (f10) IgE Measures IgE antibodies to sesame seed, a major food allergen, to check whether your immune system is sensitized to it.
• Sesame Seed (f10) IgG4 Measures IgG4 antibodies to sesame seed, which reflect your immune system's exposure to this food; their link to food symptoms is debated.
• Sex Hormone-Binding GlobulinSHBG A protein that binds and transports testosterone and estrogen in your blood, determining how much hormone is 'free' and active. Important for interpreting sex hormone results.
• Sheep Epithelia (e81) IgE Measures IgE antibodies to sheep epithelia (skin and dander), an animal allergen, to check whether you are sensitized to sheep.
• Sheep Milk (f325) IgE Measures IgE antibodies to sheep's milk, a dairy food allergen, to check whether your immune system is sensitized to it.
• Sheep Sorrel (w18) IgE Measures IgE antibodies to sheep sorrel pollen, a common weed allergen, to check whether you are sensitized to it.
• Shrimp (f24) IgE Measures IgE antibodies to shrimp, a common shellfish food allergen, to check whether your immune system is sensitized to it.
• Shrimp (f24) IgG4 Measures IgG4 antibodies to shrimp, which reflect your immune system's exposure to this shellfish; their link to food symptoms is debated.
• Sickle Cell Screen A screening test that detects sickle hemoglobin; a positive result is typically followed by hemoglobin electrophoresis to confirm sickle cell trait or disease.