A Health Care Provider Asks the Nurse About an Older

A health care provider asks the nurse about an older male adult's power of attorney because consent is needed for a medically necessary invasive procedure; the patient has end-stage disease, is intubated, and is on mechanical ventilation.Which one of the following steps should the nurse implement?

A) Refer to the patient's advance directive for a name.
B) Assist with obtaining informed consent from the patient.
C) Use an oral test to measure the patient's cognitive function.
D) Apply the Confusion Assessment Method for critical care.