Which color corresponds to a 22 gauge needle?

The 22 gauge needle is commonly associated with the color blue in the standardized color coding system used for needles. This color-coding provides a quick visual reference for healthcare professionals to identify the gauge size of a needle at a glance. The gauge number indicates the size of the needle, with a higher number representing a thinner needle. In this case, blue corresponds to the 22 gauge size, making it the correct association.

In contrast, each of the alternative colors corresponds to different needle sizes: black typically indicates a 16 gauge, green is for an 18 gauge, and yellow is associated with a 24 gauge. Therefore, knowing the color codes can facilitate better communication and practice within clinical environments, helping phlebotomy technicians choose the appropriate needle size for various procedures.