It is forbidden, however, to remove a patient from life support unless he/she is dead according to Halachic standards.

A practicing, competent rabbi must be consulted in case, G-d forbid, any of the above measures become necessary. Only an expert rabbi can determine the types of treatments, and under what circumstances they can be withheld from a patient.

This point cannot be overemphasized. Without consulting a rabbi, the family G-d forbid runs the risk of committing murder--one of the three cardinal sins in Jewish law.