Types of Collection Tubes for Blood Samples: Understanding the Differences and Uses
Summary
- There are several types of collection tubes used for blood samples, each serving a specific purpose in the laboratory setting.
- Some common types of collection tubes include serum tubes, plasma tubes, EDTA tubes, and Heparin tubes.
- It is important for healthcare professionals to understand the differences between these tubes and when each type should be used to ensure accurate and reliable Test Results.
Introduction
When it comes to collecting blood samples for laboratory testing, healthcare professionals rely on a variety of collection tubes to store and transport the specimens. These tubes are designed to preserve the integrity of the blood sample and ensure accurate Test Results. In this article, we will explore the different types of collection tubes commonly used in the medical field and discuss their specific uses and features.
Serum Tubes
Serum tubes are one of the most commonly used collection tubes in the laboratory setting. These tubes are designed to collect blood samples for a variety of tests that require serum, which is the liquid portion of blood that remains after clotting. Serum tubes typically contain a Clot Activator, which helps the blood sample to clot quickly and separate the serum from the cells. The serum can then be used for various tests, such as liver function tests, lipid profiles, and hormone tests.
Features of Serum Tubes
- Clot Activator for quick clotting of blood sample
- Silicone-coated interior to prevent clotting or adhesion of cells to the tube wall
- Gold or red stopper to indicate the presence of a Clot Activator
Plasma Tubes
Plasma tubes are similar to serum tubes but are designed to collect blood samples for tests that require plasma instead of serum. Plasma is the liquid portion of blood that remains after the blood has been anticoagulated and centrifuged to separate the cells. Plasma tubes typically contain an anticoagulant, such as EDTA or Heparin, to prevent clotting and preserve the integrity of the plasma. Plasma tubes are commonly used for tests such as complete blood count (CBC), coagulation studies, and Blood Glucose levels.
Features of Plasma Tubes
- Anticoagulant to prevent clotting of blood sample
- Green, lavender, or blue stopper to indicate the presence of an anticoagulant
- EDTA or Heparin as the anticoagulant
EDTA Tubes
EDTA (ethylenediaminetetraacetic acid) tubes are used to collect blood samples for tests that require whole blood or plasma. EDTA is a common Anticoagulant that binds calcium ions in the blood, preventing the blood from clotting. EDTA tubes are commonly used for tests such as CBC, blood typing, and DNA analysis. These tubes are available in lavender or pink stoppers to indicate the presence of EDTA.
Features of EDTA Tubes
- Anticoagulant that binds calcium ions to prevent clotting
- Lavender or pink stopper to indicate the presence of EDTA
- Submission of whole blood or plasma for testing
Heparin Tubes
Heparin tubes are used to collect blood samples for tests that require plasma. Heparin is an Anticoagulant that inhibits the action of thrombin in the blood, preventing clotting. Heparin tubes are commonly used for tests such as cardiac enzymes, electrolytes, and arterial blood gases. These tubes are available in green stoppers to indicate the presence of Heparin as the anticoagulant.
Features of Heparin Tubes
- Anticoagulant that inhibits the action of thrombin to prevent clotting
- Green stopper to indicate the presence of Heparin
- Submission of plasma for testing
Conclusion
In conclusion, there are several types of collection tubes used for blood samples in the medical field, each serving a specific purpose in the laboratory setting. Healthcare professionals must be aware of the differences between these tubes and understand when to use each type to ensure accurate and reliable Test Results. By utilizing the appropriate collection tubes for blood samples, healthcare professionals can help ensure the quality of patient care and the accuracy of diagnostic testing.
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