Maintenance should include

keeping a list of consumables
keeping a list of vendors
keeping a list of the quantity typically ordered
keeping a list of costs
demonstrating how to replenish consumables as needed
rotating supplies (e.g., syringes, needles, tubes, medications, bandages) in accordance with office/facility policy
disposing of outdated inventory, including supplies, equipment, and medications, according to facility policy and procedures and OSHA requirements.

Process/Skill Questions:

What might be included in a list of consumables?
How are supplies ordered?
What happens if supplies are not available as needed?
Why is it important to note the dates on supplies?
What medical supplies tend to go out of date quickly? What supplies tend to last longer?
How can storage conditions sometimes affect the shelf life of a product?
What can be the consequences of using expired medical supplies?
What is the procedure to check for expiration dates?
Why should outdated inventory be discarded?
How should it be discarded?