Final answer:
The lower the gauge number, the larger the bore of the IV catheter, resulting in a higher flow rate.
Step-by-step explanation:
In the context of IV catheters, the gauge number refers to the size of the bore or the opening through which fluids flow. The lower the gauge number (such as 14 or 16), the larger the bore and the higher the flow rate. On the other hand, higher gauge numbers (like 20 or 22) indicate smaller bores and lower flow rates. For example, a 14-gauge IV catheter will allow for faster fluid administration compared to a 22-gauge IV catheter.