Introduction To The Laboratory Diagnosis Of Infectious Disease

Laboratory tests may excitation directly (eg. B. visually, by means of a microscope, cultural bacterial culture) or indirectly (eg. B. Detection of antibodies against the pathogen) detected. The general types of tests microscopy culture Immunological tests include (agglutination tests such as. Latex agglutination, enzyme-linked immunosorbent assays, Western blotting, precipitation tests and complement fixation) nucleic acid-based identification methods nucleic acid-based identification methods The culture is able to usually the gold standard for pathogen identification, but the results be available only after days or weeks. All microorganisms can not be grown culturally, making alternative tests make sense. Once a pathogen is cultured and identified, the lab can also test its sensitivity to antimicrobial drugs. Sometimes molecular methods can be used to identify specific resistance genes. Some methods (eg. As Gram stain, aerobic culture) can detect a wide range of infectious agents and are usually carried out in suspected infectious diseases. However, as some agents do not respond to these tests, doctors of the limits of the individual tests for each suspected pathogen must be aware of. In such cases, the doctor should require (special stains or culture media, for. Example) or stop the laboratory to select more specific tests for specific tests for the suspected pathogen.

Health Life Media Team

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