UVA medical center employee? Paid time off

Hello there! I work at the hospital I came here to ask if anyone knows the policy for taking off time without pay? My work environment sucks but makes it worse is they seems to act very strict and extremely not empathetic when it comes to taking time off if PTO is unavailable.

My department basically forces everyone to take PTO if you’re not at work.

So some examples would be if you’re sick and out of PTO are you able to take that time off without pay? Are there consequences to certain amount of time off without pay days?

Or even if you do have plenty of PTO and will be late to work or want to leave early a couple hours can you take this time without using PTO?

Any insight would be helpful!