Specialized Blood Test Tube Requirements

Article
Written By Lauren Davis, BS, CPT

When it comes to performing blood tests, it is essential to ensure that the proper tubes are used to collect and store the blood sample. Different types of blood tests require different types of tubes in order to preserve the integrity of the sample and obtain accurate results. In this article, we will discuss the specialized blood test tube requirements for various types of blood tests.

Types of Blood Test Tubes

There are several different types of blood test tubes that are used for various purposes. The most common types of blood test tubes include:

  1. Red-Top Tube: This type of tube is used for collecting blood samples for serology, blood bank studies, and chemistry tests. It contains no anticoagulant and is used for collecting serum samples.
  2. Lavender-Top Tube: This tube contains EDTA (ethylenediaminetetraacetic acid) as an anticoagulant and is used for collecting whole blood samples for hematology tests.
  3. Gray-Top Tube: This tube contains sodium fluoride and potassium oxalate as anticoagulants and is used for collecting blood samples for glucose testing.
  4. Green-Top Tube: Also known as a plasma separator tube, this tube contains lithium heparin as an anticoagulant and is used for collecting blood samples for chemistry tests that require plasma samples.

Specialized Blood Test Tube Requirements

Genetic Testing

When collecting blood samples for genetic testing, it is important to use specialized blood test tubes that contain preservatives to prevent degradation of the DNA. The most common type of tube used for genetic testing is the purple-top tube, which contains EDTA as an anticoagulant and preservative.

Here is a useful reference link for more information on genetic testing blood tube requirements.

Coagulation Studies

For blood tests that require coagulation studies, such as the prothrombin time (PT) and activated partial thromboplastin time (aPTT) tests, it is necessary to use tubes that contain citrate as an anticoagulant. The most common type of tube used for coagulation studies is the light blue-top tube, which contains 3.2% sodium citrate.

Here is a useful reference link for more information on coagulation studies blood tube requirements.

Therapeutic Drug Monitoring

When monitoring the levels of drugs in a patient's blood, it is important to use specialized blood test tubes that are designed to prevent contamination and ensure accurate results. The most common type of tube used for therapeutic drug monitoring is the gray-top tube, which contains sodium fluoride and potassium oxalate as anticoagulants.

Here is a useful reference link for more information on therapeutic drug monitoring blood tube requirements.

Conclusion

It is crucial to use the appropriate blood test tubes when collecting blood samples for various types of blood tests. By following the specialized blood test tube requirements outlined in this article, healthcare professionals can ensure that they obtain accurate and reliable results for their patients.

Disclaimer: The content provided on this blog is for informational purposes only, reflecting the personal opinions and insights of the author(s) on phlebotomy practices and healthcare. The information provided should not be used for diagnosing or treating a health problem or disease, and those seeking personal medical advice should consult with a licensed physician. Always seek the advice of your doctor or other qualified health provider regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website. If you think you may have a medical emergency, call 911 or go to the nearest emergency room immediately. No physician-patient relationship is created by this web site or its use. No contributors to this web site make any representations, express or implied, with respect to the information provided herein or to its use. While we strive to share accurate and up-to-date information, we cannot guarantee the completeness, reliability, or accuracy of the content. The blog may also include links to external websites and resources for the convenience of our readers. Please note that linking to other sites does not imply endorsement of their content, practices, or services by us. Readers should use their discretion and judgment while exploring any external links and resources mentioned on this blog.

Lauren Davis, BS, CPT

Lauren Davis is a certified phlebotomist with a Bachelor of Science in Public Health from the University of Miami. With 5 years of hands-on experience in both hospital and mobile phlebotomy settings, Lauren has developed a passion for ensuring the safety and comfort of patients during blood draws. She has extensive experience in pediatric, geriatric, and inpatient phlebotomy, and is committed to advancing the practices of blood collection to improve both accuracy and patient satisfaction.

Lauren enjoys writing about the latest phlebotomy techniques, patient communication, and the importance of adhering to best practices in laboratory safety. She is also an advocate for continuing education in the field and frequently conducts workshops to help other phlebotomists stay updated with industry standards.

Previous

Modifying Tubes For Blood Cell Count
Next

Tube Modifications For Blood Typing