Which distribution system acquires its supplies from a primary vendor or distributor?

The correct choice is Just-in-time, which refers to a distribution system that minimizes inventory levels by acquiring supplies from a primary vendor or distributor as they are needed. This approach enhances efficiency by reducing holding costs and ensuring that materials are only ordered when required for use. In this system, items are delivered just in time for their intended use, allowing facilities to maintain lower stock levels while meeting operational demands.

In contrast, a demand system typically bases its supply acquisition on observed patient needs or procedure volumes, which might not tie directly to a primary vendor consistently. The Par Level system relies on predefined stock levels that are replenished periodically, sometimes irrespective of immediate usage or demands, thereby not necessarily being reliant solely on a primary distributor. While demand and just-in-time share some similarities in being responsive to usage, only just-in-time is characterized specifically by its focus on sourcing supplies as needed from a main vendor.