Biomarkers: explore one system at a time

Showing 861–880 of 1204 results

• Osmolality Measures the concentration of dissolved particles in your blood, reflecting hydration and fluid balance.
• Osteocalcin, N-MID A protein made by bone-building cells, used as a marker of bone formation activity.
• Ova and Parasites, Concentration A concentration step in stool parasite testing that gathers parasite eggs, larvae and cysts so they are easier to find under the microscope.
• Ova and Parasites, Light Microscopy Examines a stool sample under a light microscope for intestinal parasites and their eggs, used to investigate possible parasitic infection.
• Ova and Parasites, Trichrome Stain A permanent trichrome-stained stool smear used to identify intestinal protozoa, such as Giardia, during ova and parasite testing.
• Oxeye Daisy (w7) IgE Measures IgE antibodies to oxeye daisy pollen to check for allergic sensitization that may explain summer hay fever or asthma symptoms.
• OxLDL Measures oxidized LDL, a chemically modified form of LDL cholesterol involved in the build-up of plaque in artery walls.
• Oyster (f290) IgE Measures IgE antibodies to oyster to check for allergic sensitization to this food, helping explain reactions that happen after eating it.
• Oyster (f290) IgG4 Measures IgG4 antibodies to oyster, which mainly reflect that you have eaten this food; their link to food-related symptoms is debated.
• Pacific Squid (f58) IgE Measures IgE antibodies to Pacific squid to check for allergic sensitization to this food, helping explain reactions that happen after eating it.
• Palmitic, C16:0 Measures palmitic acid, the most common saturated fatty acid in the body and diet, as part of a serum fatty acid profile.
• Palmitoleic, C16:1W7 Measures palmitoleic acid, an omega-7 monounsaturated fatty acid made mainly in the body, as part of a serum fatty acid profile.
• Papaya (f293) IgE Measures IgE antibodies to papaya to check for allergic sensitization to this food, helping explain reactions that happen after eating it.
• Paper Wasp (i4) IgE Measures IgE antibodies to paper wasp venom to check for allergic sensitization in people who have had a reaction to a sting.
• Paprika/sweet Pepper (f218) IgE Measures IgE antibodies to paprika and sweet (bell) pepper to check for allergic sensitization to this food, helping explain reactions that happen after eating it.
• Parasite Examines a blood smear for parasites such as malaria and Babesia, which live inside red blood cells, to investigate fever after possible exposure.
• Parathyroid Hormone (PTH), IntactPTH A hormone that regulates calcium levels by acting on bone, kidneys, and the gut. Key marker for evaluating parathyroid, calcium, and bone disorders.
• Parietal Cell Antibodies Measures antibodies against stomach parietal cells, a marker of autoimmune gastritis and a supporting test when looking into pernicious anemia.
• Parotid Secretory Protein (PSP) Antibody (IgA) Measures IgA antibodies to parotid secretory protein, one of several newer markers studied as possible early signs of Sjogren's syndrome.
• Parotid Secretory Protein (PSP) Antibody (IgG) Measures IgG antibodies to parotid secretory protein, one of several newer markers studied as possible early signs of Sjogren's syndrome.