A nurse is monitoring a client who is receiving a blood transfusion. The nurse identifies that the client has urticaria and is wheezing. Which of the following types of transfusion reactions should the nurse suspect?

Blood transfusion reactions can range from mild allergic responses to life-threatening emergencies. Nurses must closely monitor clients during transfusions for early signs of adverse reactions, as prompt recognition and intervention are critical for patient safety. Anaphylactic reactions are severe hypersensitivity responses that occur due to immune-mediated reactions to donor blood components. They can rapidly progress to respiratory compromise and cardiovascular collapse if not treated immediately. Rationale: A. Febrile transfusion reactions are caused by recipient antibodies reacting to donor leukocytes or cytokines in the blood product. They typically present with fever, chills, and malaise rather than respiratory symptoms such as wheezing or skin manifestations like urticaria. This does not match the clinical presentation. B. Anaphylactic reaction is the correct response because it involves a severe allergic immune response to donor plasma proteins. It is characterized by urticaria, wheezing, bronchospasm, hypotension, and potentially airway compromise. This is a medical emergency requiring immediate cessation of the transfusion and rapid intervention. C. Circulatory overload (TACO) results from excessive fluid volume administered too quickly, leading to signs such as hypertension, dyspnea, crackles, and jugular vein distention. It is not associated with urticaria or wheezing from an allergic mechanism. The presentation is primarily cardiopulmonary rather than immunologic. D. Acute hemolytic transfusion reactions occur when incompatible blood is transfused, leading to intravascular hemolysis. Symptoms include fever, flank pain, hypotension, hemoglobinuria, and renal failure. Urticaria and wheezing are not typical features of this reaction type.