Conditional acceptance?

I have researched this and comparing this to a "normal acceptance" into a nursing program, this is for those who have a higher pressure to meet certain academic requirements while in the program (maintaining high grades).

But what I would like to please ask for clarification a bit more: so a conditionally accepted student can get kicked out if their grades dropped? What about a normally accepted student, won't they experience the same thing if their grades are too low as well?

I would think a probationary period would be enforced to give the student a chance to bring up their grades the next semester.

But why does it matter which acceptance you have then? Are conditioanllly accepted students more monitored closely or what?

Thanks!