Did we pay these workers correctly when they had kids in the hospital?

Q: “We have two employees. One is salaried and the other is hourly. Both are considered full-time employees. Both had children in the hospital for a short span of time. The salaried employee was not required to turn in a form for the time he was away from work. The hourly employee was required to turn in a form for the amount of time he was away from his work, which was subtracted from his annual PTO time. Is that legal?  - Marchia, Oklahoma