List Analyzes – R
IgM antibodies to the rubella virus appear in the acute period of infection: on the first day of rashes - in 50% of patients, in 5 days - more than 90%, in 11-25 days - in all patients.
Rheumatoid factor - autoantibodies IgG, IgM, IgA or IgE classes, reacting with Fc-fragment IgG. It is formed as a result of stimulation with aggregated modified IgG or due to the action of exogenous cross-reactive antigen in violation of immunoregulation.
Reticulocytes are young forms of erythrocytes, containing a granular-filamentous substance, detected with the help of a special supra-color
To detect antibodies to the respiratory syncytial virus, DSC or ELISA is used. In DSC, the study is carried out at the onset of the disease and after 5-7 days, it is diagnostically significant that the antibody titer increases by at least 4 times in the study of paired sera, but this test method is less sensitive in children under 4 months of age.
Markers of malignant growth include substances of different nature: antigens, hormones, enzymes, glycoproteins, lipids, proteins, metabolites. Synthesis of markers is due to the peculiarities of the metabolism of the cancer cell.
Renin is a proteolytic enzyme secreted by a group of cells located in the immediate vicinity of the renal glomeruli (and therefore called the juxtaglomerular apparatus).