Advance Directives Differ from Informed Consent in That Advance Directives

Advance directives differ from informed consent in that advance directives:

A) are guidelines to be used only if a client cannot make medical decisions for him- or herself
B) are only used for specific procedures and expire after the procedure is performed
C) can be obtained from a client who is sedated,while informed consent cannot
D) only apply to medical treatments and interventions and cannot be used to direct future nursing care