In relation to needle sizes, which statement is true regarding gauge sizes?

In the context of needle sizes, the statement regarding larger gauge sizes referring to smaller openings is indeed accurate. The gauge system used for needles is an inverse relationship where the higher the gauge number, the smaller the diameter of the needle's lumen (the hollow part of the needle). For example, a 22-gauge needle has a smaller opening compared to an 18-gauge needle.

This system is essential in phlebotomy and other medical procedures as it helps healthcare professionals choose the appropriate needle size for various tasks, such as blood draws or administering medications. Understanding gauge sizes is crucial for patient comfort and the effectiveness of the procedure.

Knowing this guideline minimizes complications such as hemolysis or difficulty in drawing blood, as the gauge size can significantly affect the blood flow and the ease of the procedure. Hence, the correct statement emphasizes the fundamental principle that larger gauge numbers indicate smaller openings.