Wednesday, 25 June 2014

The Wonder In Cardiac Elisa Kits

By Sally Delacruz


Technological advancement in medicine has helped come up with better diagnostic methods. The cardiac Elisa kits are the latest invention in this field. They are enzyme-dependent test devices that help in determining the presence or absence of heart diseases. These equipments are capable of discerning problems in hearts of virtually all animals.

This process depends is an enzyme dependent process that uses color change as an indicator of reactions in reagents. The process works through an enzyme immunoassay which combines with antigens producing the subsequent color change. This test is capable of establishing the presence of both antibodies and antigens.

This process can be used in establishing the presence of foreign bodies in human beings. It is very important since it helps in detecting and treating heart problems before they develop into serious problems. This helps in cutting down the cost involved in diagnosing and treating heart defects. This is because the defects are discovered in their early stages before they become serious problems.

The best of these tools is one that is accurate, sensitive and capable of working in a wide range of samples. Sensitivity means being able to detect and show slight changes in the reagents. Accuracy, on the other hand, is being free of major errors in making measurements. It is also very important for the instrument to be made in a way such that, each heart defect has its own diagnostic equipment.

Stability is also important in the working of this equipment. To ensure stability, the loss rate of the activity has to be kept as low as possible. Good storage is also very important in ensuring stability. For the purpose of minimizing the effects of the environment on this experiment, standard lab conditions are very important; room temperature, standard pressure and humidity. The temperatures within the incubator should be closely regulated. It is also important to have one person working on the experiment from beginning to end.

For proper working of this activity, the researcher must ensure that all standards, reagents and samples are prepared in advance. The next thing is addition of some samples to all the wells and incubating them for close to 2 hours. He should then aspire and add some reagents. Next, he should put it back in the incubator for an hour, and later aspire and wash the mixture three times. The substrate solution should then be added, and the mixture incubated for a period of between 20 and 25 minutes. After, this step, a stopping agent must be added to stop the reaction for the researcher to make readings.

The main principle applied here is enzyme sandwich. The plates inside the testing equipment are always coated with antibodies for specific heart defects. Samples are put into the plates in an appropriate manner. The main contents of the samples are specific biotin-conjugate antibodies. Before incubating, a conjugate of Avidin is added to all plates.

Once the substrate solution has been added, no other part, except the wells, will contain Tropin I type 3. A color change will be exhibited in the reagents. Sulphuric acid is then added with the purpose of bringing the reaction to an end. The change in color is measured in terms of some special wavelengths.




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