21g vacutainer needles

Introduction to 21g Vacutainer Needles

Vacutainer needles, particularly the 21g gauge, are essential tools in the medical and scientific community for the collection and preservation of blood samples. These needles are designed to fit vacutainer tubes, which are utilized to maintain the integrity of blood specimens for various analytical purposes.

Types and Applications

The 21g vacutainer needles come in an array of types, each identifiable by the color of the tube cap, signifying their specific use. The light blue capped tubes are integrated with sodium citrate for coagulation tests, while the red or gold ones contain a clot activator, suitable for serology and immunology. Tubes with gray caps are prepared with sodium fluoride and oxalate, ideal for glucose and lactic acid measurements. Lavender or pink tubes, containing potassium EDTA, are frequently used in hematology, and green-capped tubes with heparin are for routine chemistry tests. These needles are indispensable across various sectors, including medical laboratories, blood banks, and pharmaceutical settings.

Features and Materials

Vacutainer blood collection needles are meticulously crafted from durable materials, ensuring reliability during sample collection. The choice between plastic and glass tubes offers versatility, while the rubber stopper at the top of each tube maintains a vacuum, facilitating the smooth collection and preservation of blood samples.

Advantages of Using 21g Needles

The use of 21g needles for blood collection offers several advantages. Their gauge size is optimal for collecting sufficient blood volume while minimizing discomfort for patients. The vacuum system within the tubes simplifies the process of drawing blood and aids in preserving the sample's integrity until analysis.

Selecting the Right Vacutainer Needle

Selecting the appropriate vacutainer needle gauge is crucial for specific testing requirements. The 21g size is versatile for a broad range of applications, ensuring that professionals can obtain the necessary samples efficiently. With the variety of additives available, tailored to distinct testing needs, professionals can ensure the accuracy and reliability of their results.

Purchasing on Alibaba.com

Alibaba.com offers a comprehensive selection of vacutainer needles to meet the diverse needs of the healthcare and scientific communities. Without compromising on the integrity of the blood samples, professionals can source the appropriate needles to suit their specific requirements, all within a single platform.