Friday, June 27, 2014

The Working Of 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 experiment works when the enzyme immunoassay binds with antibodies and substrate. When this occurs, color changes to indicate presence or absence of trouble. With these tools, it is possible to work with both antibodies and antigens. The amount of both of them can be determined by observing the color changes.

This exercise is capable of detecting antibodies and antigens in patients. This is very useful; it helps detect illnesses before they develop into chronic problems. Doctors are able to work on it during its early stages of development. The patient will, therefore, be able to eliminate the problems at an affordable value.

Proper working of this equipment means it is sensitive to reactions, gives accurate results, and is capable of making many detailed readings at a time. When a tool is sensitive, it can exhibit any slight change resulting from the reaction between samples and reagents. Its accuracy ensures that results obtained are free of errors, and hence, believable. They are also manufactured to work on specific problems.

The device should also be stable. This is achieved through reducing the loss rate as much as may be possible. The tools should be stored in good conditions to ensure that they remain stable. Other environmental influences should be completely avoided. Appropriate environmental conditions should, therefore, be provided. These include; appropriate temperature, pressure and humidity. Somebody should be given the responsibility of controlling the temperature in the incubator at all times. Assigning one person to work on the experiment is also crucial in ensuring stability.

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 enzyme sandwich principle is applied in this experiment. Plates on the kits are coated in advance with specific antibodies for the problem under investigation. Standards or samples are then appropriately added to the plates. They normally contain antibodies which are specific to certain defects. Lastly, Avidin conjugate is put on each plate and then incubated.

After putting substrate solutions together with other reagents, only the micro-wells will have Tropin I type three. A color change will then be exhibited, and a stopper solution is added. The change in color is then measured using wavelengths.




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