Biomarkers: explore one system at a time

Showing 1001–1020 of 1204 results

• Rheumatoid Factor IgMRF An antibody associated with rheumatoid arthritis and some other autoimmune or chronic inflammatory conditions, though it can also be positive without disease.
• Rhizopus nigricans (m11) IgE
• Rh Type Identifies whether your blood is Rh-positive or Rh-negative, an important factor for blood transfusions and pregnancy management.
• Ribosomal P Antibody An autoantibody associated with lupus, particularly linked to neuropsychiatric symptoms in some patients.
• Rice (f9) IgE
• RNP Antibody An autoantibody associated with mixed connective tissue disease and, at times, lupus.
• Rough Marsh Elder (w16) IgE
• Rough Pigweed (w14) IgE Measures IgE antibodies to common pigweed pollen, a late-summer allergy trigger.
• Rubella Antibody (IgG), Immune Status Indicates immunity to rubella (German measles), whether from past infection or vaccination — commonly checked during pregnancy planning.
• Rubella IgM Indicates a recent or current rubella infection.
• Russian Thistle (w11) IgE
• Rye (f5) IgE
• Rye Food IgG4
• Saccharomyces cerevisiae Antibody (ASCA) (IgA) An antibody sometimes elevated in Crohn's disease, used as part of inflammatory bowel disease evaluation.
• Saccharomyces cerevisiae Antibody (ASCA) (IgG) An antibody sometimes elevated in Crohn's disease, used as part of inflammatory bowel disease evaluation.
• Salivary Gland Protein 1 (SP1) Antibody (IgA)
• Salivary Gland Protein 1 (SP1) Antibody (IgG)
• Salivary Gland Protein 1 (SP1) Antibody (IgM)
• Salmon (f41) IgE
• Salmon (f41) IgG4