What Makes the 18-Gauge Needle So Useful?
You'll probably notice the 18-gauge needle first because of its distinct green hub, or maybe just because it looks significantly wider than the ones used for a standard flu shot. While it might look a little daunting if you're sitting on the exam table, this specific size is actually a favorite among nurses and paramedics for some very practical reasons. It's not about being "tough" or trying to scare patients; it's simply about the physics of how fluids move from a bag into your body. ...