Quantiferon Order Of Draw

The Basics of QuantiFERON Order of Draw

QuantiFERON is an innovative blood test developed by the medical diagnostics company QIAGEN. This blood test is used to detect the presence of tuberculosis (TB) and other infection-causing organisms. It is a simple, accurate, and cost-effective test that can be administered in a variety of settings. The QuantiFERON test is composed of two components: the collection of blood samples and the evaluation of the results. In order to ensure the accuracy of the test results, it is essential to understand the process of collecting a blood sample and the order of draw.

When ordering a QuantiFERON test, the physician or laboratory technician must determine the order of draw. This order of draw is an important part of the process because it ensures that the results are accurate and reliable. The order of draw is based on the type of sample being collected and the desired test results. The collection of blood samples for QuantiFERON must follow a specific order of draw. This order of draw is as follows:

• Vacutainer tube containing EDTA (ethylenediaminetetraacetic acid) or heparin
• Vacutainer tube containing a gel additive
• Vacutainer tube containing a clot activator
• Vacutainer tube containing a clot activator and a gel additive
• Vacutainer tube containing a clot activator and a gel additive and EDTA or heparin

The EDTA or heparin tube is the first in the order of draw. This is because EDTA or heparin is an anticoagulant, meaning it prevents the blood from clotting. The addition of the anticoagulant to the sample helps ensure the accuracy of the results. The gel additive is the second in the order of draw because it helps separate the red blood cells from the white blood cells, which are important for the evaluation of the test.

The third and fourth tubes in the order of draw are the clot activator and the clot activator and gel additive tubes. These tubes contain a chemical that activates the clotting process in the sample. This helps ensure that the sample is properly clotted, allowing it to be evaluated accurately. The fifth tube in the order of draw is the clot activator and gel additive and EDTA or heparin tube. This tube contains all three components, ensuring the accuracy of the test results.

The Benefits of the QuantiFERON Order of Draw

The order of draw for the QuantiFERON test is essential for the accurate and reliable results. By following the specific order of draw, the accuracy of the results is improved, which helps ensure that the patient receives the most accurate diagnosis. Additionally, the order of draw helps the physician or laboratory technician collect the blood samples quickly and efficiently, saving time and money. The order of draw also helps to reduce the risk of contamination or sample mix-up, which can lead to inaccurate results.

Conclusion

The QuantiFERON order of draw is an essential part of the testing process. By following the specific order of draw, the accuracy of the results is improved and the risks of contamination or sample mix-up are reduced. This ensures that the patient receives the most accurate diagnosis and saves time and money for the physician or laboratory technician. Understanding the QuantiFERON order of draw is essential for accurate and reliable test results.