Repentance after Apostasy

Q: If a believer commits an act of kufr which renders him a murtad thereafter he repents, will that repentance be accepted or not? E.g. Someone spoke bad of Nabi (Sallallahu Alayhi Wasallam) so he became a murtad thereafter he repented, will that particular sin of kufr be forgiven or not?

Giving hope to the patient

Q: If a person has cancer, is it correct for the doctor to address him in such a manner that indicates to him that he will soon die? Certain doctors feel that they need to tell the patient the hard reality, not realising the depressing effects on the family.