Hi and welcome to JA. I am Ray and will be the expert helping you tonight.
Here if there is no union or employment contract
she is an at will employee.
The exception to this is if you can argue that she has been discriminated against based on her age, race, or sex.She can claim that the hospital has created a hostile environment and that there is discrimination
She would need to show that they have singled her out here, if they have allowed others such leave or treated her differently because of her age, race, or sex.
She can file here with EEOC
this may give her protection if they try to fire her then she can file again claiming retaliation here.
This may force employer to address this issue and seek to resolve it with her.She may want to consider an employment lawyer to sue for such discrimination.
EEOC file here.
More on harassment, hostile environment.
She can file an FMLA complaint as well through the US Dept. of Labor
Lawyer referral here to sue, plug in your city to get ones in your area..
I appreciate the chance to help you tonight.Please let me know if you have mroe follow up.Thanks again.