All these things that I have done

There's also a distinction or a point to be made about the whole truth versus truthful statements. The original question implies the doctor would / should sit down and explain it all, including negative things which might impact on the patient's will to live (cf prissi's comment below) or otherwise not be helpful (cf brixtonbrood's comment about the placebo effect). You can say true things without telling the truth, if the latter is understood to mean "the whole truth".