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  2. Reference ranges for blood tests - Wikipedia

    en.wikipedia.org/wiki/Reference_ranges_for_blood...

    t. e. Reference ranges (reference intervals) for blood tests are sets of values used by a health professional to interpret a set of medical test results from blood samples. Reference ranges for blood tests are studied within the field of clinical chemistry (also known as "clinical biochemistry", "chemical pathology" or "pure blood chemistry ...

  3. Immunoglobulin G - Wikipedia

    en.wikipedia.org/wiki/Immunoglobulin_G

    Immunoglobulin G. The water-accessible surface area of an IgG antibody. Immunoglobulin G (IgG) is a type of antibody. Representing approximately 75% of serum antibodies in humans, IgG is the most common type of antibody found in blood circulation. [1] IgG molecules are created and released by plasma B cells.

  4. Hypogammaglobulinemia - Wikipedia

    en.wikipedia.org/wiki/Hypogammaglobulinemia

    Hypogammaglobulinemia is an immune system disorder in which not enough gamma globulins are produced in the blood (thus hypo- + gamma + globulin + -emia). This results in a lower antibody count, which impairs the immune system, increasing risk of infection. Hypogammaglobulinemia may result from a variety of primary genetic immune system defects ...

  5. Immunoglobulin E - Wikipedia

    en.wikipedia.org/wiki/Immunoglobulin_E

    Immunoglobulin E (IgE) is a type of antibody (or immunoglobulin (Ig) "isotype") that has been found only in mammals. IgE is synthesised by plasma cells. Monomers of IgE consist of two heavy chains (ε chain) and two light chains, with the ε chain containing four Ig-like constant domains (Cε1–Cε4). [1] IgE is thought to be an important part ...

  6. Rheumatoid factor - Wikipedia

    en.wikipedia.org/wiki/Rheumatoid_factor

    Rheumatoid factor (RF) is the autoantibody that was first found in rheumatoid arthritis. It is defined as an antibody against the Fc portion of IgG and different RFs can recognize different parts of the IgG-Fc. [1] RF and IgG join to form immune complexes that contribute to the disease process such as chronic inflammation and joint destruction ...

  7. Serum free light-chain measurement - Wikipedia

    en.wikipedia.org/wiki/Serum_free_light-chain...

    Serum free light-chain measurement. Free light chains (FLCs) are immunoglobulin light chains that are found in the serum (blood) in an unbound (free) state. In recent decades, measuring the amount of free light chains (FLCs) in the blood has become a practical clinical test. FLC tests can be used to diagnose and monitor diseases like multiple ...

  8. Serum protein electrophoresis - Wikipedia

    en.wikipedia.org/wiki/Serum_protein_electrophoresis

    Schematic representation of a protein electrophoresis gel. Serum protein electrophoresis (SPEP or SPE) is a laboratory test that examines specific proteins in the blood called globulins. [1] The most common indications for a serum protein electrophoresis test are to diagnose or monitor multiple myeloma, a monoclonal gammopathy of uncertain ...

  9. Reference range - Wikipedia

    en.wikipedia.org/wiki/Reference_range

    Reference range. In medicine and health -related fields, a reference range or reference interval is the range or the interval of values that is deemed normal for a physiological measurement in healthy persons (for example, the amount of creatinine in the blood, or the partial pressure of oxygen). It is a basis for comparison for a physician or ...