Is the death of a patient who was treated with cortisone injections and a solution, even though his blood pressure was not high, considered accidental killing that necessitates expiation, or was it an exercise of professional judgment on the part of the female doctor?

Liability and consequences are not incurred based merely on probability and doubt. Rather, there must be certainty or strong presumption accompanied by circumstantial evidence. If the questioner is certain that the medicine she administered to the patient was the cause of his death, and experts confirm this, then this is considered accidental killing. In this case, two things are required: an expiation (kaffara) from the doctor who caused the death, and blood money (diyah) for the patient's heirs. The blood money, according to the majority of scholars, is to be paid by the 'aqila (male relatives on the father's side) of the doctor.