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A reference range is usually defined as the set of values 95 percent of the normal population ... a reference range for a blood test is generally ... IgG: 800 [163] 1800
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. Each IgG antibody has two paratopes.
The standard definition of a reference range for a particular measurement is defined as the interval between which 95% of values of a reference population fall into, in such a way that 2.5% of the time a value will be less than the lower limit of this interval, and 2.5% of the time it will be larger than the upper limit of this interval, whatever the distribution of these values.
Anti-dsDNA antibodies can be present in normal individuals, however these antibodies are usually low avidity IgM isotype. In contrast, pathogenic anti-dsDNA antibodies found in SLE are usually of IgG isotype and show high avidity for dsDNA. [ 15 ]
The serum protein electrophoresis test measures the number of proteins in the serum part of a blood sample. The normal ranges to check for the serum globulin would be about 2.0 to 3.5 grams per deciliter then for the immunoglobulins A, M, and G have different ranges.
IgG1 is present in the bloodstream at a percentage of about 60-70%, IgG2-20-30%, IgG3 about 5-8 %, and IgG4 1-3 %. IgG subclass deficiencies affect only IgG subclasses (usually IgG2 or IgG3), with normal total IgG and IgM immunoglobulins and other components of the immune system being at normal levels.
The indirect antiglobulin test, which is used for weak D testing and typing of some red blood cell antigens, detects IgG bound to red blood cells. If IgG is bound to red blood cells in vivo, as may occur in autoimmune hemolytic anemia, hemolytic disease of the newborn and transfusion reactions, [10]: 260 the indirect antiglobulin test will ...
MAR test in its original version is based on the classical Coombs test; sperm is mixed with human red blood cells coated with human IgG. A rabbit or goat monospecific anti-human IgG antibody is added. Agglutination (slow “shaky” movements) can be observed if sperm are coated with ASA. Instead of human red blood cells, commercial version of ...