. Describe critical nursing actions that should be taken to prevent an anaphylactic reaction. Provide a rationale to support your response. 2. Discuss the effect of an anaphylactic reaction on the body systems and the related physiology. 3. Describe priority actions the nurse should take if a client displays signs and symptoms of an anaphylactic reaction. 4. Reflect on a time when you witnessed an actual or potential medication reaction. ○ Describe the client’s reaction to the medication.