Enzyme linked immunosorbent assay is an old technique used in diagnosis of various health conditions. It is an improvement of an old and relatively similar diagnostic c tool called enzyme immunoassay. These diagnostic tools both use preparations of antibodies to detect given antigens in the sample of interest. These tools are designed in the form of kits and hence the name ELISA Kits

Types of test apparatuses: Much effort has been applied and there are many forms of preparations available. They range to higher values as high as 138000. However, all of the many existing kinds operate in a more similar manner with some little variations. The first most notable variation is the existence of direct and indirect types of tests. Direct tests are designed to examine for antibodies while indirect formulations are meant to examine for antigens as the kits can work in either way.

A second variation or difference is what is termed as sandwich Elisa. This preparation is used in the measurement of antigens entrapped between two layers of antibodies. This far there are up to 138000 different kinds of test kits available on demand.

Usages of these products: The main use of these products is for diagnosis purposes. This is achieved through detection of antigens or antibodies in a given test sample. Test results are then applied directly in management of diagnosed conditions and hence leading to improvement of quality of living. More specifically, these tests have found a place in food production industry where they are used to detect and eliminate food allergens, immunology, pharmacy and home pregnancy testing among many more.

Sources of the test kits: Several firms engage I production as well as distribution of the test kits. This is both carried out within national boundaries and internationally. The most important thing to consider here is quality and reliability of supplies. They could be prepared in the form of competitive assays or immunometrics. The information leading to purchase and possession of quality test tools is easily obtained online. In fact, one can buy these products online.

While organizing or preparing for the purchase, close interest must be given to quality. This means that such aspects as precision, sensitivity and specificity must be reviewed and evaluated before choices are made. It forms one of the tested and proven ways of ascertaining quality.

Advantages of using the test kits: One main advantage of these kinds of test is that they are accurate and fast. This implies that time needed to arrive at desired outcome is minimal and hence very convenient in time bound or time limited undertakings. Secondly, the kits are very easy to use. This usually involves simple procedure that involves application of a sample to the kit and waiting for results within minutes. On a similar note, tests of this nature are relatively cheap to carry out and needs simple interpretation. Finally, it is equally of merit that these kits can be used for both determination of the presence of antigens

Conclusion: Among all other existing diagnostic tools, elisa types of kits seem to be the best choice. They are simple to use, cheaper in cost, more specific and time is not their limiting factor. It grants both the service providers and consumers a desirable diagnostic option which can be an alternative to other forms of diagnosis.