Final answer:
The hub of a PICC line should be scrubbed for at least 15 seconds prior to accessing the port.
Step-by-step explanation:
The hub of a PICC line should be scrubbed for at least 15 seconds prior to accessing the port. This is done to ensure proper disinfection and reduce the risk of infection. Scrubbing the hub for less than 15 seconds may not effectively remove the microorganisms present on the surface.