How can a nurse prevent phlebitis in IV therapy?

Choosing the correct catheter size for the vein is critical in preventing phlebitis during IV therapy. When the catheter size is appropriate for the size of the vein, it minimizes trauma to the vein wall and reduces irritation. A catheter that is too large for a small vein can lead to increased friction and inflammation as the catheter is moved or positioned. This can directly lead to phlebitis, which is an inflammatory response to the injury caused to the endothelial lining of the vein.

Additionally, using the right size catheter can enhance blood flow and reduce stasis, which is another factor that can contribute to irritation and inflammation. By considering the patient's vein size and selecting a catheter that fits, the nurse can greatly lower the risk of phlebitis, ensuring a safer and more effective IV therapy experience for the patient.