The Purpose and Protocol of Using the Lavender Tube in Phlebotomy

Summary

  • The lavender tube is used in phlebotomy to collect blood samples for various types of tests, including complete blood count (CBC), white blood cell differential, and sedimentation rate.
  • The lavender tube contains the Anticoagulant ethylenediaminetetraacetic acid (EDTA), which helps prevent the blood from clotting and preserves the integrity of the blood cells for accurate Test Results.
  • Phlebotomists must follow specific protocols when using the lavender tube to ensure the accuracy and reliability of the blood Test Results.

Introduction

In the field of phlebotomy, the collection of blood samples is a crucial process that requires precision and attention to detail. Different color-coded tubes are used to collect blood for various types of tests, each containing specific additives to ensure the accuracy and reliability of the Test Results. One of the commonly used tubes in phlebotomy is the lavender tube, which serves a specific purpose in the collection and processing of blood samples. In this article, we will explore the purpose of the lavender tube in phlebotomy, its components, and how it is used in clinical labs and hospitals in the United States.

Components of the Lavender Tube

The lavender tube, also known as the purple top tube, is typically used to collect blood samples for hematological tests, including complete blood count (CBC), white blood cell differential, and sedimentation rate. The lavender tube contains an Anticoagulant called ethylenediaminetetraacetic acid (EDTA), which helps prevent the blood from clotting by binding to calcium ions and preserving the integrity of the blood cells for analysis. EDTA is a chelating agent that inhibits the coagulation cascade and stabilizes the blood sample for accurate Test Results.

Uses of the Lavender Tube

The lavender tube is specifically designed for blood collection in phlebotomy procedures where whole blood samples are required for hematological tests that do not involve coagulation studies. The EDTA in the lavender tube helps maintain the blood in its liquid state by sequestering calcium ions, which are essential for the coagulation process. This allows the blood sample to be processed quickly and efficiently in the clinical laboratory without clotting, ensuring accurate Test Results.

Phlebotomy Protocol for Using the Lavender Tube

When collecting blood samples using the lavender tube, phlebotomists must follow specific protocols to ensure the proper handling and processing of the blood sample. The following steps are typically followed when using the lavender tube in phlebotomy:

  1. Verify the patient's identity and label the lavender tube with the patient's name, date of birth, and medical record number.
  2. Select the appropriate vein for Venipuncture and cleanse the site with an antiseptic solution.
  3. Perform the Venipuncture using a sterile needle and collect the blood into the lavender tube by following the standard procedure for blood collection.
  4. Gently invert the lavender tube several times to ensure proper mixing of the EDTA with the blood sample to prevent clotting.
  5. Label the lavender tube with the phlebotomist's initials, date, and time of collection before sending it to the laboratory for analysis.

Handling and Processing of Lavender Tubes in the Laboratory

Once the lavender tube is collected and labeled, it is transported to the clinical laboratory for processing and analysis. In the laboratory, the lavender tube is centrifuged to separate the blood components, and the resulting plasma or whole blood sample is used for hematological tests. The laboratory technicians follow established protocols for handling and processing lavender tubes to ensure the accuracy and reliability of the Test Results. It is essential to store the lavender tube at room temperature and protect it from light to prevent alterations in the blood sample that could affect the Test Results.

Conclusion

In conclusion, the lavender tube plays a critical role in phlebotomy by providing a reliable and accurate method for collecting blood samples for hematological tests. The EDTA in the lavender tube helps prevent blood clotting and maintains the integrity of the blood cells for analysis, ensuring VALID Test Results. Phlebotomists must adhere to specific protocols when using the lavender tube to collect blood samples and handle them properly to maintain the quality of the specimen. By understanding the purpose and components of the lavender tube, healthcare professionals can ensure the accuracy and reliability of blood Test Results in clinical labs and hospitals in the United States.

a-phlebotomist-carefully-present-a--rack-of-purple-top-tubes

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