How Do Nurses Assess Pain of Neonates or of Adults

How do nurses assess pain of neonates or of adults with dementia or decreased level of consciousness? (Select all that apply.)

A) Ask family or caregivers what indicators they think may indicate the patient's pain.
B) Review results of blood tests for signs of pain.
C) Administer the ordered analgesic to the patient.
D) Identify any physiologic signs of pain.
E) Examine the patient for possible causes of pain.