A 45 year-old male presents with pain in the abdomen, nausea, constipation, bloating, loose,greasy, bulky, and bad-smelling stools and chronic diarrhea. After examining him and ordering some labs, you discover that this patient has celiac disease. Laboratory results show undetectable IgA levels and normal IgG and IgM levels. As you discussed this diagnosis with the patient, the patient revealed that he was previously diagnosed with selective IgA deficiency. He requests you to administer intravenous immunoglobulin to treat his selective IgA deficiency. He states that this course of action is especially important in the light of his newly discovered celiac disease.The physician started IgG-RT infusion at the rate of 5 ml/kg/hr. After 20 minutes, patient developed swelling of his throat and tongue, noisy and difficulty breathing, confusion, and faintness. Which of the following statements is true?
