If the patient and the caregiver are not in the right position when changing from the bed to the chair, a lot can go wrong. If the patient does not have the right support they could fall and injure themselves along with the caregiver and the caregiver needs to have the right angle to be able to support the patient because if they try to move too fast, the patient may get dizzy an the caregiver could easily hurt themselves too.
Something about a drug transplant
Menstruation? Idk if that is right, but it sounds like someone started their period.
When a body is to be destroyed after an autopsy