💉 Nursing Physics 101: not all syringes are created equal. 💉 @nurseitlikeyoumeanit shows how a narrower syringe barrel (like a long 3 mL) creates higher pressure (PSI), even with the same volume and same force. That extra pressure can damage IV lines or tissue, which is why we always use a wider-barrel syringe for IV flushes - lower PSI, safer pressure. 💙 Learning the “why” behind your skills = smarter, safer nursing. Follow @teachrn.official for more! #TeachRN #IV #NurseLife #IVTherapy