A person may, but is not bound to, use extraordinary means — those means which primarily are not considered ordinary care or common medical treatments. These means do not offer reasonable hope of benefit and may be excessively burdensome to either the patient or the family. Factors to consider in determining whether a treatment is extraordinary include the type of treatment, the degree of complexity, the amount of risk involved, its cost and accessibility, and the state of the sick person and his resources. One would weigh the proportion of pain and suffering against the amount of good to be done. Granted, in our world today, exactly what constitutes extraordinary medical care becomes harder and harder to define. For instance, accepting an artificial heart is clearly experimental and would be extraordinary, whereas the usage of a respirator or ventilator is oftentimes a standard procedure to aid the patient’s recovery.