Blood Vacuum Collection Tubes – Surgitech

Description

Description

A Blood Vacuum Collection Tube, is a sterile glass or plastic tube used to collect and store blood samples for laboratory testing. These tubes contain a vacuum, which helps draw a specific amount of blood directly from the patient’s vein into the tube when connected to a needle. They may also contain additives or preservatives to stabilize the blood for different types of analyses, such as clotting tests or chemical analysis.

Key Components of a Blood Vacuum Collection Tube:

1. Tube: Made of either glass or plastic, with a pre-measured vacuum that draws a set volume of blood.
2. Rubber Stopper: The tube is sealed with a rubber or plastic stopper that maintains the vacuum and prevents contamination. The stopper is color-coded to indicate the type of additive inside the tube.
3. Additives: Some tubes contain additives to stabilize or prepare the blood for specific types of testing. These additives may include anticoagulants (like EDTA, heparin, or sodium citrate) to prevent blood clotting or clot activators to promote clotting for serum collection.
4. Label: Tubes are labeled to indicate the type of additive, the manufacturer, and space for patient identification.
5. Color-Coding: The cap color signifies the type of additive or test for which the tube is intended:
   • Red: No additives (used for serum testing).
   • Purple/Lavender: Contains EDTA (used for hematology tests, such as complete blood counts).
   • Green: Contains heparin (used for plasma and chemistry tests).
   • Blue: Contains sodium citrate (used for coagulation studies).
   • Yellow: Contains a gel separator and clot activator (used for serum and chemistry tests).
   • Gray: Contains sodium fluoride and potassium oxalate (used for glucose testing).

Uses of Blood Vacuum Collection Tubes:

1. Blood Collection: The main use is to collect blood samples from patients for various diagnostic tests. The tube’s vacuum ensures the correct volume of blood is drawn.
2. Laboratory Testing: After blood is collected, these tubes are sent to laboratories for testing, such as:
   • Hematology: To examine blood cells (e.g., red and white blood cells, platelets).
   • Chemistry: To measure substances like glucose, cholesterol, and electrolytes.
   • Coagulation Tests: To assess blood clotting functions (e.g., prothrombin time).
   • Blood Gases: To measure oxygen and carbon dioxide levels in the blood.
3. Sample Storage: Depending on the type of test, these tubes can be stored temporarily for later analysis. Tubes with preservatives may be stored for longer periods before testing.

Types of Additives and Their Functions:

1. EDTA (Purple Cap): Ethylenediaminetetraacetic acid is an anticoagulant that binds calcium, preventing blood from clotting. It’s used for hematology tests like complete blood counts (CBCs).
2. Heparin (Green Cap): Prevents clotting by inhibiting thrombin and other clotting factors. Used in chemistry tests that require plasma.
3. Sodium Citrate (Blue Cap): An anticoagulant that binds calcium and is used in coagulation studies to measure how well blood clots.
4. Clot Activators (Red or Yellow Cap): Promote clotting, allowing for the collection of serum, which is used in various chemistry and immunology tests.
5. Gel Separators (Yellow or Gold Cap): These tubes contain a gel that creates a barrier between cells and serum/plasma after centrifugation, making it easier to separate and process samples.

Advantages of Blood Vacuum Collection Tubes:

1. Accuracy: The vacuum ensures that the correct volume of blood is collected for the required tests.
2. Sterility: These tubes are pre-sterilized, reducing the risk of contamination and ensuring sample integrity.
3. Efficiency: Blood is collected quickly and easily, with minimal discomfort to the patient.
4. Versatility: Different tubes can be used for a wide range of diagnostic tests, making them essential in clinical and laboratory settings.
5. Prevention of Sample Degradation: Additives help preserve the integrity of blood samples, preventing degradation that could affect test results.

Conclusion:

Blood vacuum collection tubes are vital tools in modern medicine and diagnostics. They allow for the efficient, sterile, and accurate collection and preservation of blood samples for a variety of tests, from routine health checks to advanced diagnostic procedures. With color-coded caps and specialized additives, these tubes make it easy to collect, store, and process blood samples for different clinical applications.