What term is used for the bore size of hypodermic needles?

The term used to describe the bore size of hypodermic needles is "gauge." In the context of needles, gauge refers to a standardized measurement that indicates the diameter of the needle's lumen, or inner opening. The higher the gauge number, the smaller the diameter of the needle, which is a crucial detail to consider when selecting the appropriate needle for injections or draws.

Gauge is particularly important in medical and surgical settings because it affects the flow rate of fluids being injected or drawn. For example, finer gauge needles are often preferred for injections that require a more delicate approach, while larger gauge needles may be necessary for drawing blood or administering thick medications.

Understanding needle gauge is fundamental for ophthalmic surgical assistants, as they may be involved in preparing and administering injections or medications during procedures. This knowledge helps ensure that the right gauge is used to maximize patient comfort while also achieving the desired therapeutic effect.

Other terms like diameter, thickness, and caliber may describe similar aspects of objects or materials, but in the context of hypodermic needles, it is gauge that is the recognized standard relevant to size and safety in clinical use.