Type of agglutination test using latex particles as passive carriers of adsorbed antigens. Particles clump together following the addition of a specific antibody. Injecting dye into the spinal canal to study bones of the spinal column. Test to determine the concentration of solids suspended in a liquid or gas. May be used to determine the number of bacteria in a specimen.
Contrast permits examination of the object without staining or other special preparation.
Determines the presence or absence of a particular property or condition. Determines ingredients of a substance. Accurate determination of the quantity of a chemical element, compound or functional group present in a specimen. Can be used to determine antibody concentrations or to determine the concentration of any substance against which specific antibodies can be produced. Determining where radioisotopes go in the body allows diagnosis of diseases that cannot be detected otherwise.