Order of Using Different Colored Blood Tube Tops to Ensure Accuracy and Quality of Blood Test Results

Summary

• It is important to follow a specific order when using different colored blood tube tops to avoid sample contamination and inaccurate Test Results.
• The usual order to follow when using different colored blood tube tops is: tubes without additives, tubes with additives for coagulation studies, and tubes with additives for other tests.
• Following the correct order when using different colored blood tube tops can ensure the quality and accuracy of blood Test Results.

Introduction

When collecting blood samples for laboratory testing, it is essential to use different colored blood tube tops that correspond to specific additives or tests. Using the correct order when drawing blood samples can help prevent sample contamination and ensure accurate Test Results. In this article, we will discuss the particular order to follow when using different colored blood tube tops.

Order of Different Colored Blood Tube Tops

Tubes Without Additives

1. The first tubes to be drawn should be those without any additives. These tubes are usually red or plain tubes.
2. These tubes are used for serum testing, as they do not contain any Anticoagulant or other additives that may interfere with the Test Results.
3. Examples of tests that require blood collected in tubes without additives include blood chemistry tests and hormone level testing.

Tubes with Additives for Coagulation Studies

1. The next set of tubes to be drawn are those with additives for coagulation studies. These tubes are usually light blue or blue in color.
2. The additives in these tubes help prevent blood from clotting and are used for tests such as Prothrombin Time (PT), Activated Partial Thromboplastin Time (aPTT), and fibrinogen levels.
3. It is crucial to follow the correct order when using tubes with additives for coagulation studies to ensure accurate Test Results.

Tubes with Additives for Other Tests

1. After drawing tubes for coagulation studies, the next tubes to be collected are those with additives for other tests. These tubes come in various colors, such as green, lavender, gray, and yellow.
2. Each color corresponds to specific additives used for different types of tests, including complete blood count (CBC), Blood Glucose, electrolyte panel, and blood cultures.
3. Following the correct order when using tubes with additives for other tests is essential to prevent contamination and ensure the accuracy of the Test Results.

Conclusion

Using different colored blood tube tops in the correct order is essential for ensuring the accuracy of blood Test Results. By following a specific order when drawing blood samples, healthcare professionals can minimize the risk of sample contamination and obtain reliable Test Results. Remember to always refer to the laboratory's guidelines and protocols for proper blood sample collection and handling.

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