A client develops an anaphylactic reaction after receiving morphine. The nurse should plan to institute which actions? (Select all that apply)
1. administer oxygen
2. quickly assess the client's respiratory status
3. document the event, interventions, and client's response
4. leave the client briefly to contact a health care provider
5. keep the client supine regardless of the blood pressure readings
6. start an IV infusion of D5W and administer a 500-mL bolus
