Final answer:
The nurse should insert the IV peripheral catheter at a 30-degree angle to ensure proper insertion and minimize complications.
Step-by-step explanation:
The nurse should insert the IV peripheral catheter at a 30-degree angle. This angle allows for optimal insertion and helps minimize complications such as infiltration or phlebitis. Inserting the catheter at a steeper angle may cause the tip to puncture the vein wall or be improperly positioned, while a shallower angle may lead to the catheter slipping out. By inserting the catheter at a 30-degree angle, it can be properly secured and provide effective intravenous access.