Hi. I recently retired from Consultus but happy to answer.
Most assignments are 2 weeks duration, which you need to commit yourself to for the job. However, you occasionally have the opportunity to pick up shorter assignments but it depends what bookings come into Consultus.
Once you are established you can ask for a regular client and decide if you want 2 on 2 off but your rota will depend on how many nurses are assigned to the clients needs