My mother is having a miscarriage we dont know what to do and we are too far from the hospital. pls help. shes 43?

No easy answer: Unfortunately, this is a very difficult situation. But the only way for any doctor to reasonably help out, is with an in person evaluation, blood testing and likely a pelvic ultrasound. Remember you can have vaginal bleeding during pregnancy without having a miscarriage, but more info is necessary to be able to better guide your mother.