Ruling on stopping mechanical ventilation and circulatory support at cessation of heartbeat

Question 3: Doctors may need to lie to the patients concerning their health condition, especially as the patient may get worse if he or she knows their real condition. Is the doctor sinful for doing this?

Answer: If the situation is as you have described, then it is permissible to stop the mechanical ventilator and circulatory support devices, provided that the heart is no longer beating and that the patient breathes only through these apparatuses… read more here.