What is a feature of using a small needle in blood collection?

The feature associated with using a small needle in blood collection that is most relevant is that it collects blood slowly but may increase hemolysis. Small gauge needles can contribute to hemolysis, which is the destruction of red blood cells, especially if the blood is drawn too quickly or forcefully. The smaller diameter of the needle can create turbulence in the blood as it passes through, which, combined with the potential for applying excessive suction, can lead to the rupture of red blood cells.

While smaller needles may be perceived as less painful due to their size, they are not necessarily faster in drawing blood and can cause complications, such as hemolysis, which diminishes the quality of the sample and can affect laboratory test results. Therefore, it’s crucial for phlebotomy technicians to understand these implications when choosing the appropriate equipment for blood collection.