Can a patient successfully sue a doctor if there is no physician-patient relationship? No If there is no prior physician-patient relationship, are you legally obliged to respond to a call from a patient for treatment? No Does being on call give rise to a physician-patient relationship? No How can one terminate a physician-patient relationship, without abandonment if there is ongoing treatment? 30 days written notice; must provide for emergency Does a physician's duty extend to the unborn child or potential victims of an ill patient? Yes What is "proximate cause"? Prove that negligence caused harm and that the cause was not too remote; what is required to hold a defendant liable in a civil lawsuit What are the two components of proximate cause? Cause-in-fact (but-for test) and foreseeability Does an expert witness have to be actively practicing medicine? Yes