I got hurt and work, if I quit are they still responsible for my DR bills

I suggest you consider the link below.

How can a superviser place you on probation when you have received only excellent reviews by superviser to include a Nat. Award,

There is no question. Please try again. I think I understand what you are saying, but am not sure.

Can my soon to be ex husband reduce amount of child support owed to me based on purchases he got for his children?

No, he cannot. Consult with your attorney.

Can i sue someone if they are calling my work place making false accusations concerning my character at my workplace

I do not think that your statement is intelligible. Please try again.

Again, no attorney could answer or respond to this statement.

How do I obtain a letter sent to slander my name by a coworker that resulted in me not obtaining a job?

No attorney could answer this as stated.

Can I sue a hospital for my job loss?

On your facts, no.

I theatened a fellow employee at work. I told him I would meet him in the parking lot after work and take care of the problem.

On your facts, no.

Coworker repeatedly makes false accusations against me and others

No it is not defamation, it is simple harassment. Consult a good local attorney there in Reno The first consult should be gratis.

Can I be sued if a student slipped off a chair?

Without knowing more facts, yes, they can sue you and the school district.