Research On The Relationship Between The Optimal Time Of Using Peripheral Intravenous Catheters And Bacteria Field Planting In Summer

Objective: To study the relationship between the time of using peripheral intravenous catheters and bacteria field planting and to discuss the optimal time of using peripheral intravenous catheters in summer from infection point of view.Methods: To divide the patients into four groups according to the different time of using peripheral intravenous catheters. Select 20 samples at random in every group. Group 1 48h≤t<72h,Group 2 72h≤t≤96h,Group 3 96h