The Additives in Blue Top Tubes for Laboratory Testing in the United States
Summary
- Blue top tubes are commonly used in clinical labs in the United States for laboratory testing.
- These tubes typically contain an additive called Sodium Citrate, which is used as an anticoagulant.
- Other additives that may be found in blue top tubes include EDTA and ACD.
Introduction
Blue top tubes are a common sight in clinical labs across the United States. These tubes are used for a variety of laboratory tests, particularly those that require plasma rather than serum for analysis. But what exactly is in these blue top tubes? In this article, we will explore the additives typically found in blue top tubes for laboratory testing in the United States.
Anticoagulant Additives
One of the most common additives found in blue top tubes is an anticoagulant. This additive is necessary to prevent the blood from clotting so that plasma can be obtained for testing. The most commonly used Anticoagulant in blue top tubes is Sodium Citrate.
Sodium Citrate
Sodium Citrate is a salt of citric acid that is commonly used as an Anticoagulant in blood collection tubes. It works by binding to calcium ions in the blood, preventing the blood from clotting. Sodium Citrate is typically found in blue top tubes in a concentration of 3.2% or 3.8%.
Other Additives
In addition to Sodium Citrate, blue top tubes may also contain other additives depending on the specific laboratory test being performed. Some of the other additives that may be found in blue top tubes include:
- EDTA (Ethylenediaminetetraacetic acid): EDTA is another common Anticoagulant that is used in blood collection tubes. It works by chelating calcium ions in the blood, preventing clotting. EDTA is typically found in purple top tubes, but it may also be present in some blue top tubes.
- ACD (Acid citrate dextrose): ACD is a solution of citric acid, Sodium Citrate, and dextrose that is used as an Anticoagulant in blood collection tubes. ACD is primarily used in speciality tests that require whole blood rather than plasma.
Conclusion
Blue top tubes are a staple in clinical labs across the United States for laboratory testing that requires plasma rather than serum. These tubes typically contain an Anticoagulant additive, such as Sodium Citrate, to prevent blood clotting and allow for accurate testing. In addition to Sodium Citrate, blue top tubes may also contain other additives such as EDTA and ACD depending on the specific lab tests being performed.
Disclaimer: The content provided on this blog is for informational purposes only, reflecting the personal opinions and insights of the author(s) on the topics. 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.