A nurse is caring for a client who is postoperative. When helping to manage the client's pain, which of the following principles should the nurse apply?

Expect the client to express his pain both verbally and nonverbally.

Use a scale from 0 to 10 to monitor the severity of the client's pain.

To achieve fast-acting pain relief, administer analgesics PO.

Administer opioids with caution because they will eventually lead to addiction.

Consider the client's individual expression of pain.