Central Venous Access Devices: Accessing an Implanted PortWolters Kluwer, 2007. 7 min. This instructional film provides a step by step demonstration of how to access a central venous access port. A nursing student verifies patient identity, sets up her supplies, cleans the port site, inserts the syringe, flushes the port, attaches and secures the medication syringe, and applies the dressing.