Sterile Storage and Distribution
What this domain tests
Sterile storage and distribution protects the sterile barrier from contamination, damage, and mix-ups until the item is used. The exam asks about event-related sterility, environmental controls, shelving, transport, stock rotation, and recall traceability.
Core rules
- Sterility is event-related: a package remains sterile until an event compromises the barrier, such as tears, punctures, moisture, compression, or exposure to contamination. Date-based expiration is used only where the package or facility specifies it.
- Store in a clean, limited-access area. AAMI recommends 68-75°F (20-24°C) and 30-60% relative humidity, with at least 8-10 inches above the floor, 18 inches below the ceiling, 2 inches from outside walls, and clear of sprinkler heads.
- Keep items in closed cabinets or covered shelves, not under sinks, on the floor, or against water pipes. Do not store cardboard shipping boxes in sterile storage.
- Inspect packages before distribution: seals, wraps, filters, locks, and labels. A dropped or compressed package is considered contaminated.
- Transport in closed carts or covered containers. Do not crush items, stack heavy items on wrapped packages, or carry sterile items against your body.
- Rotate stock first-in, first-out. Case carts and par-level exchange carts should match the pick list and preference card.
- Traceability matters: record lot and load numbers so a recall can identify every item and every patient exposure.
Worked example
A nurse finds a wrapped set on the floor behind a shelf. Reasoning: the package has had a contamination event. It is removed from sterile stock, labeled as contaminated, and sent for reprocessing; the event is documented, and the shelf is checked for other fallen items. Because the set's load number is known, if reprocessing reveals a problem, only that package is affected, not the entire sterilizer load.
Traps that cost marks
- Storing sterile items under a sink or against a wall.
- Writing on a package and tearing the wrap.
- Treating a dropped package as sterile because it 'looks fine.'
- Rotating stock last-in, first-out.
- Failing to record load numbers, making a recall impossible.