Compare and contrast immediate to delayed hypersensitivity response

Sarah has been diagnosed with chronic fatigue syndrome. She asks her nurse to explain it to her. All she knows is, she is tired all the time and doesn’t want to do much of anything. -What does this syndrome mean? – Is there recovery from this disorder or does it simply relapse and go into periods of remission? – What causes this disorder? – How is it treated? – What are the symptoms? – What is the diagnostic testing for this? – Compare and contrast immediate to delayed hypersensitivity response. How are they alike, and how do they differ? What are the symptoms they manifest? What are some treatments for these? How would you manage a client with allergies? -What are the diagnostic tests for allergies, delayed or immediate?