1. Clot Activator (Red-Top Tube)
Additive: either no additive or a clot activator.
Its purpose is to determine serum levels in chemical testing. Centrifugation is used to separate the serum, and it aids in blood clotting.
Common Uses: Standard blood tests such as hormone assays, liver function testing, and cholesterol tests.
2. Sodium Citrate Blue-Top Tube
Sodium citrate is an additive.
Its purpose is to keep blood from clotting right away for coagulation investigations. Clotting factors are preserved by sodium citrate.
Common Uses: This tube is frequently used for tests such as activated partial thromboplastin time (aPTT) and prothrombin time (PT).
3. EDTA Purple-Top Tube
Ethylenediaminetetraacetic acid, or EDTA, is an additive.
EDTA’s function is to bind calcium ions, stop blood clotting, and protect cellular constituents. Tests in hematology are its main usage.
Blood smears, blood types, and complete blood counts (CBCs) are common uses.
4. Heparin (Green-Top Tube) Additive: Heparin.
Heparin’s function is to inhibit thrombin, which stops clots from forming. In chemistry, it is frequently employed for plasma determinations.
Electrolyte panels, liver function tests, and some genetic testing are examples of common uses.
The Yellow-Top Tube (also known as the Serum Separator Tube or SST) contains gel and clot activator for the separation of serum.
The gel in this tube serves the purpose of easily extracting serum by separating the blood cells from the serum following centrifugation.
Viral marker testing, serology, and immunology are common applications.
The Significance of Color Coding
In addition to making identification simple, the color-coded caps are essential for guaranteeing that the appropriate test is performed on the appropriate blood sample. Inaccurate results from using the incorrect tube could impact patient treatment and diagnosis.
In conclusion
Knowing the many kinds of blood collection tubes is crucial for conducting accurate and trustworthy lab tests, regardless of your role as a phlebotomist, lab technician, or healthcare professional. Every tube has a specific function, and selecting the appropriate one contributes to both overall patient safety and the veracity of test results.
LabCare Enterprises offers premium blood collection tubes from leading producers, guaranteeing precision and dependability in each sample collection.
Disclaimer
This guide is for general information only and not a substitute for professional advice. Always follow your lab’s protocols and consult a specialist if needed. LabCare Enterprises isn’t responsible for how this information is used—stay informed and stay accurate!
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