A PRN visit is ordered in advance and used only if it is needed. It sits on the calendar waiting — and most of what looks wrong about PRN visits is actually them working as designed.
The rules
PRN visits are ordered once, in advance, attached to a frequency order. There is no standalone PRN order.
Every PRN order states its criteria — for example, "2 visits as needed for wound complications." No criteria, no order.
PRN visits are performed by an RN or LPN only.
A PRN visit is valid only for the episode it was ordered in. Unused visits expire with the episode.
No new order is needed to use one. One order covers the visit — period.
Where PRN visits sit
Ordered PRN visits sit on the patient calendar as unassigned visits. They do not generate an assignment task, do not appear in the unassigned visits count, and do not count toward the routine frequency. They stay there, unused, until needed. This is normal.
Use a PRN visit
The clinician or patient reports that the PRN criteria have been met.
Notify scheduling.
Open the visit on the patient calendar and assign a qualified nurse — RN or LPN.
The visit proceeds as normal. The documentation states the activation reason.
At recertification
Determine whether PRN visits are still needed.
If yes, include them on the new certification and obtain provider approval.
Prior-episode PRN visits do not carry forward.
If something goes wrong
No assignment task exists for a PRN visit. Correct behavior — assignment happens on demand, from the calendar.
A PRN visit is needed but none was ordered. Obtain the order first. The visit does not happen before the order exists.
The calendar warns about PRN compliance. PRN visits need an ordered ceiling, not an open-ended count — check the order's stated criteria and count.