The Importance of Following Correct Order of Draw in Phlebotomy
Summary
- Potential for sample contamination
- Inaccurate Test Results
- Patient misdiagnosis and improper treatment
Introduction
Phlebotomists play a crucial role in the medical field by collecting blood samples for diagnostic testing. Following the correct order of draw during blood collection is essential to ensure the accuracy and reliability of Test Results. In this article, we will discuss the consequences that could occur if a phlebotomist does not follow the correct order of draw.
What is the Order of Draw?
The order of draw refers to the sequence in which different blood collection tubes should be filled during a blood draw. This order is designed to prevent Cross-Contamination between samples and ensure the accuracy of Test Results. The correct order of draw is as follows:
1. Blood Cultures
2. Coagulation Tubes (light blue, green, lavender)
3. Serum Tubes (red or gold)
4. Heparin Tubes (green or light green)
5. EDTA Tubes (lavender or pink)
6. Glycolytic Inhibitor Tubes (gray)
Consequences of Incorrect Order of Draw
Failure to follow the correct order of draw can have serious consequences, including:
1. Potential for Sample Contamination
When blood samples are collected in the wrong order, there is a risk of sample contamination. For example, if a tube containing an Anticoagulant is drawn before a coagulation tube, residual Anticoagulant may contaminate the coagulation sample, leading to inaccurate Test Results.
2. Inaccurate Test Results
Incorrect order of draw can result in inaccurate Test Results due to Cross-Contamination between samples. This can lead to false-positive or false-negative results, which can have serious implications for patient diagnosis and treatment.
3. Patient Misdiagnosis and Improper Treatment
If a phlebotomist does not follow the correct order of draw, it can result in patient misdiagnosis and improper treatment. For example, a patient may be misdiagnosed with a condition based on faulty Test Results, leading to unnecessary procedures or medications.
Importance of Following Correct Order of Draw
It is crucial for phlebotomists to follow the correct order of draw to ensure the integrity of blood samples and the accuracy of Test Results. By adhering to the established order, phlebotomists can minimize the risk of sample contamination and ensure that patients receive the appropriate diagnosis and treatment.
Conclusion
Following the correct order of draw during blood collection is essential for maintaining the quality and reliability of diagnostic Test Results. Phlebotomists must be diligent in following the established order to prevent sample contamination, ensure accurate Test Results, and avoid patient misdiagnosis and improper treatment. By prioritizing patient safety and adherence to protocol, phlebotomists can play a vital role in the delivery of quality healthcare services.
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