Why would a phlebotomist need to use a butterfly needle?

Using a butterfly needle is particularly beneficial for accessing small or difficult veins. These needles have flexible wings that allow for better control and stability during insertion, which is essential when dealing with veins that may be more challenging to puncture, such as those found in pediatric patients, elderly patients, or those with smaller veins. The design of the butterfly needle also enables the phlebotomist to maintain a secure grip, making it easier to manipulate and position the needle correctly, thereby reducing the risk of multiple punctures and increasing patient comfort during the blood draw.

Other reasons for using a butterfly needle could involve its capability to minimize discomfort for the patient and its suitability for drawing blood in various positions. However, the primary use remains its effectiveness in reaching difficult-to-access veins.