What is Elisa's test?

enzyme -bound immunosorbent test, or ELISA, is a type of medical diagnostic test used to detect whether a patient has a certain antibody or antigen. It can be useful for a number of different purposes concerning immunology such as disease testing and virus testing. For example, the ELISA HIV test may be administered to determine whether the patient was infected with HIV antibodies. In addition, ELISA tests are sometimes used in testing for illegal drug use. The ELISA test can also help detect allergic reactions to food products such as nuts or milk objects. This is usually done by inserting the needle into the vein on the back of the patient's hand or into the patient's inner elbow area. Alternatively, the ELISA test can allow a urine sample. In any case, the gathered test sample is placed in a tube or a test glass or strip. The health carrier E then sends a sample to the analysis laboratory.

In the laboratory, the technicians will determine,Whether a targeted antibody or antigen is present in the test sample. If the patient has a certain disease or condition, his sample will contain antibodies for this disease or condition. These antibodies will be used for antigens used as cardboard in most ELISA tests.

The laboratory technician cleans the test sample using a special test solution that will wash away everything except antigens or antibodies that stick to the antigens. Furthermore, the laboratory technician will use the enzyme solution for the test sample. If the sample changes color or provides a different indication, the target antibody or antigen is present in the test sample and the patient will positively test this condition.

In general, the Elisa test is considered reliable within the immunological community. However, it is possible for a patient who actually does not have targeted infection to experience a phenomenon known as false positive . FoldThe ešná positive occurs when a patient who is not infected with target antibodies gives a positive result during the ELISA test.

False positives can occur for several reasons. For example, if the sample becomes contaminated or unintentionally switching in the laboratory, it may be false positive. Patients with haemophilia or hemodialysis or alcoholic patients with hepatitis are also more susceptible to experiencing false positives. Users of injection and women who had more pregnancies can also be more likely to realize false positives.